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Articles 91 - 120 of 221
Full-Text Articles in Astrophysics and Astronomy
Toi-132 B: A Short-Period Planet In The Neptune Desert Transiting A V = 11.3 G-Type Star, M. R. Díaz, J. S. Jenkins, D. Gandolfi, E. D. Lopez, M. G. Soto, P. Cortés-Zuleta, Z. M. Berdiñas, K. G. Stassun, K. A. Collins, J. I. Vines, C. Ziegler, M. Fridlund, Eric L.N. Jensen, F. Murgas, A. Santerne, P. A. Wilson, M. Esposito, A. P. Hatzes, M. C. Johnson, K. W. F. Lam, J. H. Livingston, V. Van Eylen, N. Narita, C. Briceño, K. I. Collins, S. Csizmadia, M. Fausnaugh, T. Gan, R. A. García, I. Georgieva, A. Glidden, L. González-Cuesta, J. M. Jenkins, D. W. Latham, N. M. Law, A. W. Mann, S. Mathur, I. Mireles, R. Morris, E. Pallé, C. M. Persson, G. Ricker, S. Rinehart, M. E. Rose, S. Seager, J. C. Smith, T.-G. Tan, A. Tokovinin, A. Vanderburg, R. Vanderspek, J. N. Winn, D. A. Yahalomi
Toi-132 B: A Short-Period Planet In The Neptune Desert Transiting A V = 11.3 G-Type Star, M. R. Díaz, J. S. Jenkins, D. Gandolfi, E. D. Lopez, M. G. Soto, P. Cortés-Zuleta, Z. M. Berdiñas, K. G. Stassun, K. A. Collins, J. I. Vines, C. Ziegler, M. Fridlund, Eric L.N. Jensen, F. Murgas, A. Santerne, P. A. Wilson, M. Esposito, A. P. Hatzes, M. C. Johnson, K. W. F. Lam, J. H. Livingston, V. Van Eylen, N. Narita, C. Briceño, K. I. Collins, S. Csizmadia, M. Fausnaugh, T. Gan, R. A. García, I. Georgieva, A. Glidden, L. González-Cuesta, J. M. Jenkins, D. W. Latham, N. M. Law, A. W. Mann, S. Mathur, I. Mireles, R. Morris, E. Pallé, C. M. Persson, G. Ricker, S. Rinehart, M. E. Rose, S. Seager, J. C. Smith, T.-G. Tan, A. Tokovinin, A. Vanderburg, R. Vanderspek, J. N. Winn, D. A. Yahalomi
Physics & Astronomy Faculty Works
The Neptune desert is a feature seen in the radius-period plane, whereby a notable dearth of short period, Neptune-like planets is found. Here, we report the Transiting Exoplanet Survey Satellite (TESS) discovery of a new short-period planet in the Neptune desert, orbiting the G-type dwarf TYC 8003-1117-1 (TOI-132). TESS photometry shows transit-like dips at the level of ∼1400 ppm occurring every ∼2.11 d. High-precision radial velocity follow-up with High Accuracy Radial Velocity Planet Searcher confirmed the planetary nature of the transit signal and provided a semi-amplitude radial velocity variation of 11.38 +0.84−0.85 m s−1, which, when combined with the stellar …
Tess Spots A Hot Jupiter With An Inner Transiting Neptune, C. X. Huang, S. N. Quinn, A. Vanderburg, J. Becker, J. E. Rodriguez, F. J. Pozuelos, D. Gandolfi, G. Zhou, A. W. Mann, K. A. Collins, I. Crossfield, K. Barkaoui, K. I. Collins, M. Fridlund, M. Gillon, E. J. Gonzales, M. N. Günther, T. J. Henry, S. B. Howell, H.-S. James, W.-C. Jao, E. Jehin, Eric L.N. Jensen, S. R. Kane, J. J. Lissauer, E. Matthews, R. A. Matson, L. A. Paredes, J. E. Schlieder, K. G. Stassun, A. Shporer, L. Sha, T.-G. Tan, I. Georgieva, S. Mathur, E. Palle, C. M. Persson, V. Van Eylen, G. R. Ricker, R. K. Vanderspek, D. W. Latham, J. N. Winn, S. Seager, J. M. Jenkins, C. J. Burke, R. F. Goeke, S. Rinehart, M. E. Rose, E. B. Ting, G. Torres, I. Wong
Tess Spots A Hot Jupiter With An Inner Transiting Neptune, C. X. Huang, S. N. Quinn, A. Vanderburg, J. Becker, J. E. Rodriguez, F. J. Pozuelos, D. Gandolfi, G. Zhou, A. W. Mann, K. A. Collins, I. Crossfield, K. Barkaoui, K. I. Collins, M. Fridlund, M. Gillon, E. J. Gonzales, M. N. Günther, T. J. Henry, S. B. Howell, H.-S. James, W.-C. Jao, E. Jehin, Eric L.N. Jensen, S. R. Kane, J. J. Lissauer, E. Matthews, R. A. Matson, L. A. Paredes, J. E. Schlieder, K. G. Stassun, A. Shporer, L. Sha, T.-G. Tan, I. Georgieva, S. Mathur, E. Palle, C. M. Persson, V. Van Eylen, G. R. Ricker, R. K. Vanderspek, D. W. Latham, J. N. Winn, S. Seager, J. M. Jenkins, C. J. Burke, R. F. Goeke, S. Rinehart, M. E. Rose, E. B. Ting, G. Torres, I. Wong
Physics & Astronomy Faculty Works
Hot Jupiters are rarely accompanied by other planets within a factor of a few in orbital distance. Previously, only two such systems have been found. Here, we report the discovery of a third system using data from the Transiting Exoplanet Survey Satellite (TESS). The host star, TOI-1130, is an eleventh magnitude K-dwarf in Gaia G-band. It has two transiting planets: a Neptune-sized planet (3.65 ± 0.10 ${R}_{\oplus }$) with a 4.1 days period, and a hot Jupiter (${1.50}_{-0.22}^{+0.27}$ ${R}_{{\rm{J}}}$) with an 8.4 days period. Precise radial-velocity observations show that the mass of the hot Jupiter is ${0.974}_{-0.044}^{+0.043}$ ${M}_{{\rm{J}}}$. For the …
Gj 1252 B: A 1.2 R⊕ Planet Transiting An M3 Dwarf At 20.4 Pc, A. Shporer, K. A. Collins, N. Astudillo-Defru, J. Irwin, X. Bonfils, K. I. Collins, E. Matthews, J. G. Winters, D. R. Anderson, J. D. Armstrong, D. Charbonneau, R. Cloutier, T. Daylan, T. Gan, M. N. Günther, C. Hellier, K. Horne, C. X. Huang, Eric L.N. Jensen, J. Kielkopf, E. Palle, R. Sefako, K. G. Stassun, T.-G. Tan, A. Vanderburg, G. R. Ricker, D. W. Latham, R. Vanderspek, S. Seager, J. N. Winn, J. M. Jenkins, K. Colon, C. D. Dressing, S. Léepine, P. S. Muirhead, M. E. Rose, J. D. Twicken, J. N. Villasenor
Gj 1252 B: A 1.2 R⊕ Planet Transiting An M3 Dwarf At 20.4 Pc, A. Shporer, K. A. Collins, N. Astudillo-Defru, J. Irwin, X. Bonfils, K. I. Collins, E. Matthews, J. G. Winters, D. R. Anderson, J. D. Armstrong, D. Charbonneau, R. Cloutier, T. Daylan, T. Gan, M. N. Günther, C. Hellier, K. Horne, C. X. Huang, Eric L.N. Jensen, J. Kielkopf, E. Palle, R. Sefako, K. G. Stassun, T.-G. Tan, A. Vanderburg, G. R. Ricker, D. W. Latham, R. Vanderspek, S. Seager, J. N. Winn, J. M. Jenkins, K. Colon, C. D. Dressing, S. Léepine, P. S. Muirhead, M. E. Rose, J. D. Twicken, J. N. Villasenor
Physics & Astronomy Faculty Works
We report the discovery of GJ 1252 b, a planet with a radius of 1.193 ± 0.074 R⊕ and an orbital period of 0.52 days around an M3-type star (0.381 ± 0.019 M⊕, 0.391 ± 0.020 R⊕) located 20.385 ± 0.019 pc away. We use Transiting Exoplanet Survey Satellite (TESS) data, ground-based photometry and spectroscopy, Gaia astrometry, and high angular resolution imaging to show that the transit signal seen in the TESS data must originate from a transiting planet. We do so by ruling out all false-positive scenarios that attempt to explain the transit signal …
Full Orbital Solution For The Binary System In The Northern Galactic Disc Microlensing Event Gaia16aye, Ł. Wyrzykowski, P. Mróz, K. A. Rybicki, M. Gromadzki, Z. Kołaczkowski, M. Zieliński, P. Zieliński, N. Britavskiy, A. Gomboc, K. Sokolovsky, S. T. Hodgkin, L. Abe, G. F. Aldi, A. Almannaei, G. Altavilla, A. Al Qasim, G. C. Anupama, S. Awiphan, E. Bachelet, V. Bakış, S. Baker, S. Bartlett, P. Bendjoya, K. Benson, I. F. Bikmaev, G. Birenbaum, N. Blagorodnova, S. Blanco-Cuaresma, S. Boeva, A. Z. Bonanos, V. Bozza, D. M. Bramich, I. Bruni, R. A. Burenin, U. Burgaz, T. Butterley, H. E. Caines, D. B. Caton, S. Calchi Novati, J. M. Carrasco, A. Cassan, V. Čepas, M. Cropper, M. Chruślińska, G. Clementini, A. Clerici, D. Conti, M. Conti, S. Cross, F. Cusano, G. Damljanovic, D. Dapergolas, G. D'Ago, J. H. J. De Bruijne, M. Dennefeld, V. S. Dhillon, M. Dominik, J. Dziedzic, O. Erece, M. V. Eselevich, H. Esenoglu, L. Eyer, R. Figuera Jaimes, S. J. Fossey, A. I. Galeev, S. A. Grebenev, A. C. Gupta, A. G. Gutaev, N. Hallakoun, A. Hamanowicz, C. Han, B. Hanzlik, J. B. Haislip, L. Hanlon, L. K. Hardy, D. L. Harrison, H. J. Van Heerden, V. L. Hoette, K. Horne, R. Hudec, M. Hundertmark, N. Ihanec, E. N. Irtuganov, R. Itoh, P. Iwanek, M. D. Jovanovic, R. Janulis, M. Jelínek, Eric L.N. Jensen, Z. Kaczmarek, D. Katz, I. M. Khamitov, Y. Kilic, J. Klencki, U. Kolb, G. Kopacki, V. V. Kouprianov, K. Kruszyńska, S. Kurowski, G. Latev, C.-H. Lee, S. Leonini, G. Leto, F. Lewis, Z. Li, A. Liakos, S. P. Littlefair, J. Lu, C. J. Manser, S. Mao, D. Maoz, A. Martin-Carrillo, J. P. Marais, M. Maskoliūnas, J. R. Maund, P. J. Meintjes, S. S. Melnikov, K. Ment, P. Mikołajczyk, M. Morrell, N. Mowlavi, D. Moździerski, D. Murphy, S. Nazarov, H. Netzel, R. Nesci, C.-C. Ngeow, A. J. Norton, E. O. Ofek, E. Pakštienė, L. Palaversa, A. Pandey, E. Paraskeva, M. Pawlek, M. T. Penny, B. E. Penprase, A. Piascik, J. L. Prieto, J. K. T. Qvam, C. Ranc, A. Rebassa-Mansergas, D. E. Reichert, P. Reig, L. Rhodes, J.-P. Rivet, G. Rixon, D. Roberts, P. Rosi, D. M. Russell, R. Zanmar Sanchez, G. Scarpetta, G. Seabroke, B. J. Shappee, R. Schmidt, Y. Shvartzvald, M. Sitek, J. Skowron, M. Śniegowska, C. Snodgrass, P. S. Soares, B. Van Soelen, Z. T. Spetsieri, A. Stankevičiūtė, I. A. Steele, R. A. Street, J. Strobl, E. Strubble, H. Szegedi, L. M. Tinjava Ramirez, L. Tomasella, Y. Tsapras, D. Vernet, S. Villanueva Jr., O. Vince, J. Wambsganss, I. P. Van Der Westhuizen, K. Wiersema, D. Wium, R. W. Wilson, A. Yoldas, R. Ya. Zhuchkov, D. G. Zhukov, J. Zdanavičius, S. Zoła, A. Zubareva
Full Orbital Solution For The Binary System In The Northern Galactic Disc Microlensing Event Gaia16aye, Ł. Wyrzykowski, P. Mróz, K. A. Rybicki, M. Gromadzki, Z. Kołaczkowski, M. Zieliński, P. Zieliński, N. Britavskiy, A. Gomboc, K. Sokolovsky, S. T. Hodgkin, L. Abe, G. F. Aldi, A. Almannaei, G. Altavilla, A. Al Qasim, G. C. Anupama, S. Awiphan, E. Bachelet, V. Bakış, S. Baker, S. Bartlett, P. Bendjoya, K. Benson, I. F. Bikmaev, G. Birenbaum, N. Blagorodnova, S. Blanco-Cuaresma, S. Boeva, A. Z. Bonanos, V. Bozza, D. M. Bramich, I. Bruni, R. A. Burenin, U. Burgaz, T. Butterley, H. E. Caines, D. B. Caton, S. Calchi Novati, J. M. Carrasco, A. Cassan, V. Čepas, M. Cropper, M. Chruślińska, G. Clementini, A. Clerici, D. Conti, M. Conti, S. Cross, F. Cusano, G. Damljanovic, D. Dapergolas, G. D'Ago, J. H. J. De Bruijne, M. Dennefeld, V. S. Dhillon, M. Dominik, J. Dziedzic, O. Erece, M. V. Eselevich, H. Esenoglu, L. Eyer, R. Figuera Jaimes, S. J. Fossey, A. I. Galeev, S. A. Grebenev, A. C. Gupta, A. G. Gutaev, N. Hallakoun, A. Hamanowicz, C. Han, B. Hanzlik, J. B. Haislip, L. Hanlon, L. K. Hardy, D. L. Harrison, H. J. Van Heerden, V. L. Hoette, K. Horne, R. Hudec, M. Hundertmark, N. Ihanec, E. N. Irtuganov, R. Itoh, P. Iwanek, M. D. Jovanovic, R. Janulis, M. Jelínek, Eric L.N. Jensen, Z. Kaczmarek, D. Katz, I. M. Khamitov, Y. Kilic, J. Klencki, U. Kolb, G. Kopacki, V. V. Kouprianov, K. Kruszyńska, S. Kurowski, G. Latev, C.-H. Lee, S. Leonini, G. Leto, F. Lewis, Z. Li, A. Liakos, S. P. Littlefair, J. Lu, C. J. Manser, S. Mao, D. Maoz, A. Martin-Carrillo, J. P. Marais, M. Maskoliūnas, J. R. Maund, P. J. Meintjes, S. S. Melnikov, K. Ment, P. Mikołajczyk, M. Morrell, N. Mowlavi, D. Moździerski, D. Murphy, S. Nazarov, H. Netzel, R. Nesci, C.-C. Ngeow, A. J. Norton, E. O. Ofek, E. Pakštienė, L. Palaversa, A. Pandey, E. Paraskeva, M. Pawlek, M. T. Penny, B. E. Penprase, A. Piascik, J. L. Prieto, J. K. T. Qvam, C. Ranc, A. Rebassa-Mansergas, D. E. Reichert, P. Reig, L. Rhodes, J.-P. Rivet, G. Rixon, D. Roberts, P. Rosi, D. M. Russell, R. Zanmar Sanchez, G. Scarpetta, G. Seabroke, B. J. Shappee, R. Schmidt, Y. Shvartzvald, M. Sitek, J. Skowron, M. Śniegowska, C. Snodgrass, P. S. Soares, B. Van Soelen, Z. T. Spetsieri, A. Stankevičiūtė, I. A. Steele, R. A. Street, J. Strobl, E. Strubble, H. Szegedi, L. M. Tinjava Ramirez, L. Tomasella, Y. Tsapras, D. Vernet, S. Villanueva Jr., O. Vince, J. Wambsganss, I. P. Van Der Westhuizen, K. Wiersema, D. Wium, R. W. Wilson, A. Yoldas, R. Ya. Zhuchkov, D. G. Zhukov, J. Zdanavičius, S. Zoła, A. Zubareva
Physics & Astronomy Faculty Works
Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the Gaia space mission. Its light curve exhibited five distinct brightening episodes, reaching up to I = 12 mag, and it was covered in great detail with almost 25 000 data points gathered by a network of telescopes. We present the photometric and spectroscopic follow-up covering 500 days of the event evolution. We employed a full Keplerian binary orbit microlensing model combined with the motion of Earth and Gaia around the Sun …
Hd 213885b: A Transiting 1-D-Period Super-Earth With An Earth-Like Composition Around A Bright (V = 7.9) Star Unveiled By Tess, N. Espinoza, R. Brahm, T. Henning, A. Jordán, C. Dorn, F. Rojas, P. Sarkis, D. Kossakowski, M. Schlecker, M. R. Díaz, J. S. Jenkins, C. Aguilera-Gomez, J. M. Jenkins, J. D. Twicken, K. A. Collins, J. Lissauer, D. J. M. Armstrong, V. Adibekyan, D. Barrado, S. C. C. Barros, M. Battley, D. Bayliss, F. Bouchy, E. M. Bryant, B. F. Cooke, O. D. S. Demaneon, X. Dumusque, P. Figueira, H. Giles, J. Lillo-Box, C. Lovis, L. D. Nielsen, F. Pepe, D. Pollacco, N. C. Santos, S. G. Sousa, S. Udry, P. J. Wheatley, O. Turner, M. Marmier, D, Ségransan, G. Ricker, D. Latham, S. Seager, J. N. Winn, J. F. Kielkopf, R. Hart, G. Wingham, Eric L.N. Jensen, K. G. Hełminiak, A. Tokovinin, C. Briceño, C. Ziegler, N. M. Law, A. W. Mann, T. Daylan, J. P. Doty, N. Guerrero, P. Boyd, I. Crossfield, R. I. Morris, C. E. Henze, A. D. Chacon
Hd 213885b: A Transiting 1-D-Period Super-Earth With An Earth-Like Composition Around A Bright (V = 7.9) Star Unveiled By Tess, N. Espinoza, R. Brahm, T. Henning, A. Jordán, C. Dorn, F. Rojas, P. Sarkis, D. Kossakowski, M. Schlecker, M. R. Díaz, J. S. Jenkins, C. Aguilera-Gomez, J. M. Jenkins, J. D. Twicken, K. A. Collins, J. Lissauer, D. J. M. Armstrong, V. Adibekyan, D. Barrado, S. C. C. Barros, M. Battley, D. Bayliss, F. Bouchy, E. M. Bryant, B. F. Cooke, O. D. S. Demaneon, X. Dumusque, P. Figueira, H. Giles, J. Lillo-Box, C. Lovis, L. D. Nielsen, F. Pepe, D. Pollacco, N. C. Santos, S. G. Sousa, S. Udry, P. J. Wheatley, O. Turner, M. Marmier, D, Ségransan, G. Ricker, D. Latham, S. Seager, J. N. Winn, J. F. Kielkopf, R. Hart, G. Wingham, Eric L.N. Jensen, K. G. Hełminiak, A. Tokovinin, C. Briceño, C. Ziegler, N. M. Law, A. W. Mann, T. Daylan, J. P. Doty, N. Guerrero, P. Boyd, I. Crossfield, R. I. Morris, C. E. Henze, A. D. Chacon
Physics & Astronomy Faculty Works
We report the discovery of the 1.008-d, ultrashort period (USP) super-Earth HD 213885b (TOI-141b) orbiting the bright (V = 7.9) star HD 213885 (TOI-141, TIC 403224672), detected using photometry from the recently launched TESS mission. Using FEROS, HARPS, and CORALIE radial velocities, we measure a precise mass of 8.8 ± 0.6 M⊕ for this 1.74 ± 0.05 R⊕ exoplanet, which provides enough information to constrain its bulk composition – similar to Earth’s but enriched in iron. The radius, mass, and stellar irradiation of HD 213885b are, given our data, very similar to 55 Cancri e, making this exoplanet a good …
Near-Resonance In A System Of Sub-Neptunes From Tess, S. N. Quinn, J. C. Becker, J. E. Rodriguez, S. Hadden, C. X. Huang, T. D. Morton, F. C. Adams, D. Armstrong, J. D. Eastman, J. Homer, S. R. Kane, J. J. Lissauer, J. D. Twicken, A. Vanderburg, R. Wittenmyer, G. R. Ricker, R. K. Vanderspek, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, E. Agol, K. Barkaoui, C. A. Beichman, F. Bouchy, L. G. Bouma, A. Burdanov, J. Campbell, R. Carlino, S. M. Cartwright, D. Charbonneau, J. L. Christiansen, D. Ciardi, K. A. Collins, K. I. Collins, D. M. Conti, I. J. M. Crossfield, T. Daylan, J. Dittmann, J. Doty, D. Dragomir, E. Ducrot, M. Gillon, A. Glidden, R. F. Goeke, E. J. Gonzales, K. G. Hełminiak, E. P. Horch, S. B. Howell, E. Jehin, Eric L.N. Jensen, J. F. Kielkopf, M. H. Kristiansen, N. Law, A. W. Mann, M. Marmier, R. A. Matson, E. Matthews, T. Mazeh, M. Mori, F. Murgas, C. Murray, N. Narita, L. D. Nielsen, G. Ottoni, E. Palle, R. Pawłaszek, F. Pepe, J. Pitogo De Leon, F. J. Pozuelos, H. M. Relles, J. E. Schlieder, D. Sebastian, D. Ségransan, A. Shporer, K. G. Stassun, M. Tamura, S. Udry, I. Waite, J. G. Winters, C. Ziegler
Near-Resonance In A System Of Sub-Neptunes From Tess, S. N. Quinn, J. C. Becker, J. E. Rodriguez, S. Hadden, C. X. Huang, T. D. Morton, F. C. Adams, D. Armstrong, J. D. Eastman, J. Homer, S. R. Kane, J. J. Lissauer, J. D. Twicken, A. Vanderburg, R. Wittenmyer, G. R. Ricker, R. K. Vanderspek, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, E. Agol, K. Barkaoui, C. A. Beichman, F. Bouchy, L. G. Bouma, A. Burdanov, J. Campbell, R. Carlino, S. M. Cartwright, D. Charbonneau, J. L. Christiansen, D. Ciardi, K. A. Collins, K. I. Collins, D. M. Conti, I. J. M. Crossfield, T. Daylan, J. Dittmann, J. Doty, D. Dragomir, E. Ducrot, M. Gillon, A. Glidden, R. F. Goeke, E. J. Gonzales, K. G. Hełminiak, E. P. Horch, S. B. Howell, E. Jehin, Eric L.N. Jensen, J. F. Kielkopf, M. H. Kristiansen, N. Law, A. W. Mann, M. Marmier, R. A. Matson, E. Matthews, T. Mazeh, M. Mori, F. Murgas, C. Murray, N. Narita, L. D. Nielsen, G. Ottoni, E. Palle, R. Pawłaszek, F. Pepe, J. Pitogo De Leon, F. J. Pozuelos, H. M. Relles, J. E. Schlieder, D. Sebastian, D. Ségransan, A. Shporer, K. G. Stassun, M. Tamura, S. Udry, I. Waite, J. G. Winters, C. Ziegler
Physics & Astronomy Faculty Works
We report the Transiting Exoplanet Survey Satellite detection of a multi-planet system orbiting the V = 10.9 K0 dwarf TOI-125. We find evidence for up to five planets, with varying confidence. Three transit signals with high signal-to-noise ratio correspond to sub-Neptune-sized planets (2.76, 2.79, and 2.94 R⊕), and we statistically validate the planetary nature of the two inner planets (Pb = 4.65 days, Pc = 9.15 days). With only two transits observed, we report the outer object (P.03 = 19.98 days) as a planet candidate with high signal-to-noise ratio. We also detect a candidate transiting …
Kelt-24b: A 5mJ Planet On A 5.6 Day Well-Aligned Orbit Around The Young V = 8.3 F-Star Hd 93148, J. E. Rodriguez, J. D. Eastman, G. Zhou, S. N. Quinn, T. G. Beatty, K. Penev, M. C. Johnson, P. A. Cargile, D. W. Latham, A. Bieryla, K. A. Collins, C. D. Dressing, D. R. Ciardi, H. M. Relles, G. Murawski, T. Nishiumi, A. Yonehara, R. Ishimaru, F. Yoshida, J. Gregorio, M. B. Lund, D. J. Stevens, K. G. Stassun, B. S. Gaudi, K. D. Colón, J. Pepper, N. Narita, S. Awiphan, P. Chuanraksasat, P. Benni, R. Zambelli, L. H. Garrison, M. L. Wilson, M. A. Cornachione, S. X. Wang, J. Labadie-Bartz, R. Rodríguez, R. J. Siverd, X. Yao, D. Bayliss, P. Berlind, M. L. Calkins, J. L. Chirstiansen, David H. Cohen, D. M. Conti, I. A. Curtis, D. L. Depoy, G. A. Esquerdo, P. Evans, D. Feliz, B. J. Fulton, T. W.-S. Holoien, D. J. James, T. Jayasinghe, H. Jang-Condell, Eric L.N. Jensen, J. A. Johnson, M. D. Joner, S. Khakpash, J. F. Kielkopf, R. B. Kuhn, M. Manner, J. L. Marshall, K. K. Mcleod, N. Mccrady, T. E. Oberst, R. J. Oelkers, M. T. Penny, P. A. Reed, D. H. Sliski, B. J. Shappee, D. C. Stephens, C. Stockdale, T.-G. Tan, M. Trueblood, P. Trueblood, S. Villanueva Jr., R. A. Wittenmyer, J. T. Wright
Kelt-24b: A 5mJ Planet On A 5.6 Day Well-Aligned Orbit Around The Young V = 8.3 F-Star Hd 93148, J. E. Rodriguez, J. D. Eastman, G. Zhou, S. N. Quinn, T. G. Beatty, K. Penev, M. C. Johnson, P. A. Cargile, D. W. Latham, A. Bieryla, K. A. Collins, C. D. Dressing, D. R. Ciardi, H. M. Relles, G. Murawski, T. Nishiumi, A. Yonehara, R. Ishimaru, F. Yoshida, J. Gregorio, M. B. Lund, D. J. Stevens, K. G. Stassun, B. S. Gaudi, K. D. Colón, J. Pepper, N. Narita, S. Awiphan, P. Chuanraksasat, P. Benni, R. Zambelli, L. H. Garrison, M. L. Wilson, M. A. Cornachione, S. X. Wang, J. Labadie-Bartz, R. Rodríguez, R. J. Siverd, X. Yao, D. Bayliss, P. Berlind, M. L. Calkins, J. L. Chirstiansen, David H. Cohen, D. M. Conti, I. A. Curtis, D. L. Depoy, G. A. Esquerdo, P. Evans, D. Feliz, B. J. Fulton, T. W.-S. Holoien, D. J. James, T. Jayasinghe, H. Jang-Condell, Eric L.N. Jensen, J. A. Johnson, M. D. Joner, S. Khakpash, J. F. Kielkopf, R. B. Kuhn, M. Manner, J. L. Marshall, K. K. Mcleod, N. Mccrady, T. E. Oberst, R. J. Oelkers, M. T. Penny, P. A. Reed, D. H. Sliski, B. J. Shappee, D. C. Stephens, C. Stockdale, T.-G. Tan, M. Trueblood, P. Trueblood, S. Villanueva Jr., R. A. Wittenmyer, J. T. Wright
Physics & Astronomy Faculty Works
We present the discovery of KELT-24 b, a massive hot Jupiter orbiting a bright (V = 8.3 mag, K = 7.2 mag) young F-star with a period of 5.6 days. The host star, KELT-24 (HD 93148), has a T eff = ${6509}_{-49}^{+50}$ K, a mass of M * = ${1.460}_{-0.059}^{+0.055}$ M ⊙, a radius of R * = 1.506 ± 0.022 R ⊙, and an age of ${0.78}_{-0.42}^{+0.61}$ Gyr. Its planetary companion (KELT-24 b) has a radius of R P = 1.272 ± 0.021 R J and a mass of M P = ${5.18}_{-0.22}^{+0.21}$ M J, and from Doppler tomographic …
Toi-150b And Toi-163b: Two Transiting Hot Jupiters, One Eccentric And One Inflated, Revealed By Tess Near And At The Edge Of The Jwst Cvz, D. Kossakowski, N. Espinoza, R. Brahm, A. Jordán, T. Henning, F. Rojas, M. Kürster, P. Sarkis, M. Schlecker, F. J. Pozuelos, K. Barkaoui, E. Jehin, M. Gillon, E. Matthews, E. P. Horch, D. R. Ciardi, I. J. M. Crossfield, E. Gonzales, S. B. Howell, R. Matson, J. Schlieder, J. Jenkins, G. Ricker, S. Seager, J. N. Winn, J. Li, M. E. Rose, J. C. Smith, S. Dynes, E. Morgan, J. N. Villasenor, D. Charbonneau, T. Jaffe, L. Yu, G. Bakos, W. Bhatti, F. Bouchy, K. A. Collins, K. I. Collins, Z. Csubry, P. Evans, Eric L.N. Jensen, C. Lovis, M. Marmier, L. D. Nielsen, D. Osip, F. Pepe, H. M. Relles, D. Ségransan, A. Shporer, C. Stockdale, V. Suc, O. Turner, S. Udry
Toi-150b And Toi-163b: Two Transiting Hot Jupiters, One Eccentric And One Inflated, Revealed By Tess Near And At The Edge Of The Jwst Cvz, D. Kossakowski, N. Espinoza, R. Brahm, A. Jordán, T. Henning, F. Rojas, M. Kürster, P. Sarkis, M. Schlecker, F. J. Pozuelos, K. Barkaoui, E. Jehin, M. Gillon, E. Matthews, E. P. Horch, D. R. Ciardi, I. J. M. Crossfield, E. Gonzales, S. B. Howell, R. Matson, J. Schlieder, J. Jenkins, G. Ricker, S. Seager, J. N. Winn, J. Li, M. E. Rose, J. C. Smith, S. Dynes, E. Morgan, J. N. Villasenor, D. Charbonneau, T. Jaffe, L. Yu, G. Bakos, W. Bhatti, F. Bouchy, K. A. Collins, K. I. Collins, Z. Csubry, P. Evans, Eric L.N. Jensen, C. Lovis, M. Marmier, L. D. Nielsen, D. Osip, F. Pepe, H. M. Relles, D. Ségransan, A. Shporer, C. Stockdale, V. Suc, O. Turner, S. Udry
Physics & Astronomy Faculty Works
We present the discovery of TYC9191-519-1b (TOI-150b, TIC 271893367) and HD271181b (TOI-163b, TIC 179317684), two hot Jupiters initially detected using 30-min cadence Transiting Exoplanet Survey Satellite (TESS) photometry from Sector 1 and thoroughly characterized through follow-up photometry (CHAT, Hazelwood, LCO/CTIO, El Sauce, TRAPPIST-S), high-resolution spectroscopy (FEROS, CORALIE), and speckle imaging (Gemini/DSSI), confirming the planetary nature of the two signals. A simultaneous joint fit of photometry and radial velocity using a new fitting package juliet reveals that TOI-150b is a 1.254±0.016 RJ, massive (2.61+0.19−0.12 MJ) hot Jupiter in a 5.857-d orbit, while TOI-163b is an inflated (RP = 1.478+0.022−0.029RJ, MP = …
The Degree Of Alignment Between Circumbinary Disks And Their Binary Hosts, I. Czekala, E. Chiang, S. M. Andrews, Eric L.N. Jensen, G. Torres, D. J. Wilner, K. G. Stassun, B. Macintosh
The Degree Of Alignment Between Circumbinary Disks And Their Binary Hosts, I. Czekala, E. Chiang, S. M. Andrews, Eric L.N. Jensen, G. Torres, D. J. Wilner, K. G. Stassun, B. Macintosh
Physics & Astronomy Faculty Works
All four circumbinary (CB) protoplanetary disks orbiting short-period (P < 20 days) double-lined spectroscopic binaries (SB2s)—a group that includes UZ Tau E, for which we present new Atacama Large Millimeter/Submillimeter Array data—exhibit sky-plane inclinations i disk that match, to within a few degrees, the sky-plane inclinations i★ of their stellar hosts. Although for these systems the true mutual inclinations θ between disk and binary cannot be directly measured because relative nodal angles are unknown, the near coincidence of i disk and i★ suggests that θ is small for these most compact of systems. We confirm this hypothesis using a hierarchical Bayesian analysis, showing that 68% of CB disks around short-period SB2s have θ < 30. Near coplanarity of CB disks implies near coplanarity of CB planets discovered by Kepler, which in turn implies that the occurrence …
Kelt-23ab: A Hot Jupiter Transiting A Near-Solar Twin Close To The Tess And Jwst Continuous Viewing Zones, D. Johns, P. A. Reed, J. E. Rodriguez, J. Pepper, K. A. Stassun, K. Penev, B. S. Gaudi, J. Labadie-Bartz, B. J. Fulton, S. N. Quinn, J. D. Eastman, D. R. Ciardi, L. Hirsch, D. J. Stevens, C. P. Stevens, T. E. Oberst, David H. Cohen, Eric L.N. Jensen, P. Benni, S. Villanueva Jr., G. Murawski, A, Bieryla, D. W. Latham, S. Vanaverbeke, F. Dubois, S. Rau, L. Logie, R. F. Rauenzahn, R. A. Wittenmyer, R. Zambelli, D. Bayliss, T. G. Beatty, K. A. Collins, K. D. Colón, I. A. Curtis, P. Evans, J. Gregorio, D. James, D. L. Depoy, M. C. Johnson, M. D. Joner, D. H. Kasper, S. Khakpash, J. F. Kielkopf, R. B. Kuhn, M. B. Lund, M. Manner, J. L. Marshall, K. K. Mcleod, M. T. Penny, H. Relles, R. J. Siverd, D. C. Stephens, C. Stockdale, T.-G. Tan, M. Trueblood, P. Trueblood, X. Yao
Kelt-23ab: A Hot Jupiter Transiting A Near-Solar Twin Close To The Tess And Jwst Continuous Viewing Zones, D. Johns, P. A. Reed, J. E. Rodriguez, J. Pepper, K. A. Stassun, K. Penev, B. S. Gaudi, J. Labadie-Bartz, B. J. Fulton, S. N. Quinn, J. D. Eastman, D. R. Ciardi, L. Hirsch, D. J. Stevens, C. P. Stevens, T. E. Oberst, David H. Cohen, Eric L.N. Jensen, P. Benni, S. Villanueva Jr., G. Murawski, A, Bieryla, D. W. Latham, S. Vanaverbeke, F. Dubois, S. Rau, L. Logie, R. F. Rauenzahn, R. A. Wittenmyer, R. Zambelli, D. Bayliss, T. G. Beatty, K. A. Collins, K. D. Colón, I. A. Curtis, P. Evans, J. Gregorio, D. James, D. L. Depoy, M. C. Johnson, M. D. Joner, D. H. Kasper, S. Khakpash, J. F. Kielkopf, R. B. Kuhn, M. B. Lund, M. Manner, J. L. Marshall, K. K. Mcleod, M. T. Penny, H. Relles, R. J. Siverd, D. C. Stephens, C. Stockdale, T.-G. Tan, M. Trueblood, P. Trueblood, X. Yao
Physics & Astronomy Faculty Works
We announce the discovery of KELT-23Ab, a hot Jupiter transiting the relatively bright (V = 10.3) star BD+66 911 (TYC 4187-996-1), and characterize the system using follow-up photometry and spectroscopy. A global fit to the system yields host-star properties of Teff = 5900 ± 49 K, M* = 0.945 ((+0.060)/(-0.054))M⊙, R* = 0.995 ± 0.015 R⊙, L* = 1.082 ((+0.051)/(-0.048)) L⊙, log g* = 4.418 ((+0.026)/(-0.025) (cgs), and [Fe/H] = -0.105 ± 0.077. KELT-23Ab is a hot Jupiter with a mass of Mp = 0.938 ((+0.045)/-0.042)) M …
Magnetic Ob[A] Stars With Tess: Probing Their Evolutionary And Rotational Properties (Mobster) – I. First-Light Observations Of Known Magnetic B And A Stars, A. David-Uraz, C. Neiner, J. Sikora, D. M. Bowman, V. Petit, S. Chowdhury, G. Handler, M. Pergeorelis, M. Cantiello, David H. Cohen, C. Erba, Z. Keszthelyi, V. Khalack, O. Kobzar, O. Kochukhov, J. Labadie-Bartz, C. C. Lovekin, R. Macinnis, S. P. Owocki, H. Pablo, M. E. Shultz, A. Ud-Doula, G. A. Wade, Mobster Collaboration
Magnetic Ob[A] Stars With Tess: Probing Their Evolutionary And Rotational Properties (Mobster) – I. First-Light Observations Of Known Magnetic B And A Stars, A. David-Uraz, C. Neiner, J. Sikora, D. M. Bowman, V. Petit, S. Chowdhury, G. Handler, M. Pergeorelis, M. Cantiello, David H. Cohen, C. Erba, Z. Keszthelyi, V. Khalack, O. Kobzar, O. Kochukhov, J. Labadie-Bartz, C. C. Lovekin, R. Macinnis, S. P. Owocki, H. Pablo, M. E. Shultz, A. Ud-Doula, G. A. Wade, Mobster Collaboration
Physics & Astronomy Faculty Works
In this paper we introduce the MOBSTER collaboration and lay out its scientific goals. We present first results based on the analysis of 19 previously known magnetic O, B, and A stars observed in 2-min cadence in sectors 1 and 2 of the Transiting Exoplanet Survey Satellite (TESS) mission. We derive precise rotational periods from the newly obtained light curves and compare them to previously published values. We also discuss the overall photometric phenomenology of the known magnetic massive and intermediate-mass stars and propose an observational strategy to augment this population by taking advantage of the high-quality observations produced by …
The L 98-59 System: Three Transiting, Terrestrial-Size Planets Orbiting A Nearby M Dwarf, V. B. Kostov, J. E. Schlieder, T. Barclay, E. V. Quintana, K. D. Colón, J. Brande, K. A. Collins, A. D. Feinstein, S. Hadden, S. R. Kane, L. Kreidberg, E. Kruse, C. Lam, E. Matthews, B. T. Montet, F. J. Pozuelos, K. G. Stassun, J. G. Winters, G. Ricker, R. Vanderspek, D. Latham, S. Seager, J. Winn, J. M. Jenkins, D. Afanasev, J. J. D. Armstrong, G. Arney, P. Boyd, G. Barentsen, K. Barkaoui, N. E. Batalha, C. Beichman, D. Bayliss, C. Burke, A. Burdanov, L. Cacciapuoti, A. Carson, D. Charbonneau, J. Christiansen, D. Ciardi, M. Clampin, K. I. Collins, D. M. Conti, J. Coughlin, G. Covone, I. Crossfield, L. Delrez, S. Domagal-Goldman, C. Dressing, E. Ducrot, Z. Essack, M. E. Everett, T. Fauchez, D. Foreman-Mackey, T. Gan, E. Gilbert, M. Gillon, E. Gonzales, A. Hamann, C. Hedges, H. Hocutt, K. Hoffman, E. P. Horch, K. Home, S. Howell, S. Hynes, M. Ireland, J. M. Irwin, G. Isopi, Eric L.N. Jensen, E. Jehin, L. Kaltenegger, J. F. Kielkopf, R. Kopparapu, N. Lewis, E. Lopez, J. J. Lissauer, A. W. Mann, F. Mallia, A. Mandell, R. A. Matson, T. Mazeh, T. Monsue, S. E. Moran, V. Moran, C. V. Morley, B. Morris, P. Muirhead, K. Mukai, S. Mullally, F. Mullally, C. Murray, N. Narita, E. Palle, D. Pidhorodetska, D. Quinn, H. Relles, S. Rinehart, M. Ritsko, J. E. Rodriguez, P. Rowden, J. F. Row, D. Sebastian, R. Sefako, S. Shahaf, A. Shporer, N. Tañón Reyes, P. Tenenbaum, E. B. Ting, J. D. Twicken, G. T. Van Belle, L. Vega, J. Volosin
The L 98-59 System: Three Transiting, Terrestrial-Size Planets Orbiting A Nearby M Dwarf, V. B. Kostov, J. E. Schlieder, T. Barclay, E. V. Quintana, K. D. Colón, J. Brande, K. A. Collins, A. D. Feinstein, S. Hadden, S. R. Kane, L. Kreidberg, E. Kruse, C. Lam, E. Matthews, B. T. Montet, F. J. Pozuelos, K. G. Stassun, J. G. Winters, G. Ricker, R. Vanderspek, D. Latham, S. Seager, J. Winn, J. M. Jenkins, D. Afanasev, J. J. D. Armstrong, G. Arney, P. Boyd, G. Barentsen, K. Barkaoui, N. E. Batalha, C. Beichman, D. Bayliss, C. Burke, A. Burdanov, L. Cacciapuoti, A. Carson, D. Charbonneau, J. Christiansen, D. Ciardi, M. Clampin, K. I. Collins, D. M. Conti, J. Coughlin, G. Covone, I. Crossfield, L. Delrez, S. Domagal-Goldman, C. Dressing, E. Ducrot, Z. Essack, M. E. Everett, T. Fauchez, D. Foreman-Mackey, T. Gan, E. Gilbert, M. Gillon, E. Gonzales, A. Hamann, C. Hedges, H. Hocutt, K. Hoffman, E. P. Horch, K. Home, S. Howell, S. Hynes, M. Ireland, J. M. Irwin, G. Isopi, Eric L.N. Jensen, E. Jehin, L. Kaltenegger, J. F. Kielkopf, R. Kopparapu, N. Lewis, E. Lopez, J. J. Lissauer, A. W. Mann, F. Mallia, A. Mandell, R. A. Matson, T. Mazeh, T. Monsue, S. E. Moran, V. Moran, C. V. Morley, B. Morris, P. Muirhead, K. Mukai, S. Mullally, F. Mullally, C. Murray, N. Narita, E. Palle, D. Pidhorodetska, D. Quinn, H. Relles, S. Rinehart, M. Ritsko, J. E. Rodriguez, P. Rowden, J. F. Row, D. Sebastian, R. Sefako, S. Shahaf, A. Shporer, N. Tañón Reyes, P. Tenenbaum, E. B. Ting, J. D. Twicken, G. T. Van Belle, L. Vega, J. Volosin
Physics & Astronomy Faculty Works
We report the Transiting Exoplanet Survey Satellite (TESS) discovery of three terrestrial-size planets transiting L 98-59 (TOI-175, TIC 307210830)—a bright M dwarf at a distance of 10.6 pc. Using the Gaia-measured distance and broadband photometry, we find that the host star is an M3 dwarf. Combined with the TESS transits from three sectors, the corresponding stellar parameters yield planet radii ranging from 0.8 R⊕ to 1.6 R⊕. All three planets have short orbital periods, ranging from 2.25 to 7.45 days with the outer pair just wide of a 2:1 period resonance. Diagnostic tests produced by the TESS …
The Effect Of Binarity On Circumstellar Disk Evolution, S. A. Barenfeld, J. M. Carpenter, A. I. Sargent, A. C. Rizzuto, A. L. Kraus, T. Meshkat, R. L. Akeson, Eric L.N. Jensen, S. Hinkley
The Effect Of Binarity On Circumstellar Disk Evolution, S. A. Barenfeld, J. M. Carpenter, A. I. Sargent, A. C. Rizzuto, A. L. Kraus, T. Meshkat, R. L. Akeson, Eric L.N. Jensen, S. Hinkley
Physics & Astronomy Faculty Works
We present new results on how the presence of stellar companions affects disk evolution based on a study of the 5–11 Myr old Upper Scorpius OB Association. Of the 50 G0-M3 Upper Sco members with disks in our sample, only seven host a stellar companion within 2'' and brighter than K = 15, compared to 35 of 75 members without disks. This matches a trend seen in the 1–2 Myr old Taurus region, where systems with a stellar companion within 40 au have a lower fraction of infrared-identified disks than those without such companions, indicating shorter disk lifetimes in close …
Resolved Young Binary Systems And Their Disks, R. L. Akeson, Eric L.N. Jensen, J. Carpenter, L. Ricci, S. Laos, N. F. Nogueira, Emma M. Suen-Lewis , '18
Resolved Young Binary Systems And Their Disks, R. L. Akeson, Eric L.N. Jensen, J. Carpenter, L. Ricci, S. Laos, N. F. Nogueira, Emma M. Suen-Lewis , '18
Physics & Astronomy Faculty Works
We have conducted a survey of young single and multiple systems in the Taurus–Auriga star-forming region with the Atacama Large Millimeter Array (ALMA), substantially improving both the spatial resolution and sensitivity with which individual protoplanetary disks in these systems have been observed. These ALMA observations can resolve binary separations as small as 25–30 au and have an average 3σ detection level of 0.35 mJy, equivalent to a disk mass of 4 × 10−5 M ⊙ for an M3 star. Our sample was constructed from stars that have an infrared excess and/or signs of accretion and have been classified as Class …
Extreme Resonance Line Profile Variations In The Ultraviolet Spectra Of Ngc 1624-2: Probing The Giant Magnetosphere Of The Most Strongly Magnetized Known O-Type Star, A. David-Uraz, C. Erba, V. Petit, A. W. Fullerton, F. Martins, N. R. Walborn, R. Macinnis, R. H. Barbá, David H. Cohen, J. Maíz Apellániz, Y. Nazé, S. P. Owocki, J. O. Sundqvist, A Ud-Doula, G. A. Wade
Extreme Resonance Line Profile Variations In The Ultraviolet Spectra Of Ngc 1624-2: Probing The Giant Magnetosphere Of The Most Strongly Magnetized Known O-Type Star, A. David-Uraz, C. Erba, V. Petit, A. W. Fullerton, F. Martins, N. R. Walborn, R. Macinnis, R. H. Barbá, David H. Cohen, J. Maíz Apellániz, Y. Nazé, S. P. Owocki, J. O. Sundqvist, A Ud-Doula, G. A. Wade
Physics & Astronomy Faculty Works
In this paper, we present high-resolution HST/COS observations of the extreme magnetic O star NGC 1624-2. These represent the first ultraviolet spectra of this archetypal object. We examine the variability of its wind-sensitive resonance lines, comparing it to that of other known magnetic O stars. In particular, the observed variations in the profiles of the C iv and Si iv doublets between low state and high state are the largest observed in any magnetic O-type star, consistent with the expected properties of NGC 1624-2’s magnetosphere. We also observe a redshifted absorption component in the low state, a feature not seen …
Diagnosing The Clumpy Protoplanetary Disk Of The Uxor Type Young Star Gm Cephei, P. C. Huang, W. P. Chen, M. Mugrauer, R. Bischoff, J. Budaj, O. Burkhonov, S. Ehgamberdiev, R. Errmann, Z. Garai, H. Y. Hsiao, C. L. Hu, R. Janulis, Eric L.N. Jensen, S. Kiyota, K. Kuramoto, C. S. Lin, H. C. Lin, J. Z. Liu, O. Lux, H. Naito, R. Neuhäuser, J. Ohlert, E. Pakštienė, T. Pribulla, J. K. T. Qvam, S. Raetz, S. Sato, M. Schwartz, E. Semkov, S. Takagi, D. Wagner, M. Watanabe, Y. Zhang
Diagnosing The Clumpy Protoplanetary Disk Of The Uxor Type Young Star Gm Cephei, P. C. Huang, W. P. Chen, M. Mugrauer, R. Bischoff, J. Budaj, O. Burkhonov, S. Ehgamberdiev, R. Errmann, Z. Garai, H. Y. Hsiao, C. L. Hu, R. Janulis, Eric L.N. Jensen, S. Kiyota, K. Kuramoto, C. S. Lin, H. C. Lin, J. Z. Liu, O. Lux, H. Naito, R. Neuhäuser, J. Ohlert, E. Pakštienė, T. Pribulla, J. K. T. Qvam, S. Raetz, S. Sato, M. Schwartz, E. Semkov, S. Takagi, D. Wagner, M. Watanabe, Y. Zhang
Physics & Astronomy Faculty Works
UX Orionis stars (UXors) are Herbig Ae/Be or T Tauri stars exhibiting sporadic occultation of stellar light by circumstellar dust. GM Cephei is such a UXor in the young (∼4 Myr) open cluster Trumpler 37, showing prominent infrared excess, emission-line spectra, and flare activity. Our photometric monitoring (2008–2018) detects (1) an ∼3.43 day period, likely arising from rotational modulation by surface starspots, (2) sporadic brightening on timescales of days due to accretion, (3) irregular minor flux drops due to circumstellar dust extinction, and (4) major flux drops, each lasting for a couple of months with a recurrence time, though not …
Tess Discovery Of An Ultra-Short-Period Planet Around The Nearby M Dwarf Lhs 3844, R. Vanderspek, C. X. Huang, A. Vanderburg, G. R. Ricker, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, J. Burt, J. Dittmann, E. Newton, S. N. Quinn, A. Shporer, D. Charbonneau, J. Irwin, K. Ment, J. G. Winters, K. A. Collins, P. Evans, T. Gan, R. Hart, Eric L.N. Jensen, J. Kielkopf, S. Mao, W. Waalkes, F. Bouchy, M. Marmier, L. D. Nielsen, G. Ottoni, F. Pepe, D. Ségransan, S. Udry, T. Henry, L. A. Paredes, H.-S. James, R. H. Hinojosa, M. L. Silverstein, E. Palle, Z. Berta-Thompson, I. Crossfield, M. D. Davies, D. Dragomir, M. Fausnaugh, A. Glidden, J. Pepper, E. H. Morgan, M. Rose, J. D. Twicken, J. N. S. Villaseñor, L. Yu, G. Bakos, J. Bean, L. A. Buchhave, J. Christensen-Dalsgaard, J. L. Christiansen, D. R. Ciardi, M. Clampin, N. De Lee, D. Deming, J. Doty, J. G. Jernigan, L. Kaltenegger, J. J. Lissauer, P. R. Mccullough, N. Narita, M. Paegert, A. Pal, S. Rinehart, D. Sasselov, B. Sato, A. Sozzetti, K. G. Stassun, G. Torres
Tess Discovery Of An Ultra-Short-Period Planet Around The Nearby M Dwarf Lhs 3844, R. Vanderspek, C. X. Huang, A. Vanderburg, G. R. Ricker, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, J. Burt, J. Dittmann, E. Newton, S. N. Quinn, A. Shporer, D. Charbonneau, J. Irwin, K. Ment, J. G. Winters, K. A. Collins, P. Evans, T. Gan, R. Hart, Eric L.N. Jensen, J. Kielkopf, S. Mao, W. Waalkes, F. Bouchy, M. Marmier, L. D. Nielsen, G. Ottoni, F. Pepe, D. Ségransan, S. Udry, T. Henry, L. A. Paredes, H.-S. James, R. H. Hinojosa, M. L. Silverstein, E. Palle, Z. Berta-Thompson, I. Crossfield, M. D. Davies, D. Dragomir, M. Fausnaugh, A. Glidden, J. Pepper, E. H. Morgan, M. Rose, J. D. Twicken, J. N. S. Villaseñor, L. Yu, G. Bakos, J. Bean, L. A. Buchhave, J. Christensen-Dalsgaard, J. L. Christiansen, D. R. Ciardi, M. Clampin, N. De Lee, D. Deming, J. Doty, J. G. Jernigan, L. Kaltenegger, J. J. Lissauer, P. R. Mccullough, N. Narita, M. Paegert, A. Pal, S. Rinehart, D. Sasselov, B. Sato, A. Sozzetti, K. G. Stassun, G. Torres
Physics & Astronomy Faculty Works
Data from the newly commissioned Transiting Exoplanet Survey Satellite has revealed a "hot Earth" around LHS 3844, an M dwarf located 15 pc away. The planet has a radius of 1.303 ± 0.022 R⊕ and orbits the star every 11 hr. Although the existence of an atmosphere around such a strongly irradiated planet is questionable, the star is bright enough (I = 11.9, K = 9.1) for this possibility to be investigated with transit and occultation spectroscopy. The star's brightness and the planet's short period will also facilitate the measurement of the planet's mass through Doppler spectroscopy.
Kelt-22ab: A Massive, Short-Period Hot Jupiter Transiting A Near-Solar Twin, J. Labadie-Bartz, J. E. Rodriguez, K. G. Stassun, D. R. Ciardi, K. Penev, M. C. Johnson, B. S. Gaudi, K. D. Colón, A. Bieryla, D. W. Latham, J. Pepper, K. A. Collins, P. Evans, H. Relles, R. J. Siverd, J. Bento, X. Yao, C. Stockdale, T.-G. Tan, G. Zhou, J. D. Eastman, M. D. Albrow, D. Bayliss, T. G. Beatty, P. Berlind, V. Bozza, M. L. Calkins, David H. Cohen, I. A. Curtis, G. A. Esquerdo, D. Feliz, B. J. Fulton, J. Gregorio, D. James, Eric L.N. Jensen, J. A. Johnson, S. A. Johnson, M. D. Joner, D. Kasper, J. F. Kielkopf, R. B. Kuhn, M. B. Lund, A. Malpas, M. Manner, N. Mccrady, K. K. Mcleod, T. E. Oberst, M. T. Penny, P. A. Reed, D. H. Sliski, D. C. Stephens, D. J. Stevens, S. Villanueva Jr., R. A. Wittenmyer, J. T. Wright, R. Zambelli
Kelt-22ab: A Massive, Short-Period Hot Jupiter Transiting A Near-Solar Twin, J. Labadie-Bartz, J. E. Rodriguez, K. G. Stassun, D. R. Ciardi, K. Penev, M. C. Johnson, B. S. Gaudi, K. D. Colón, A. Bieryla, D. W. Latham, J. Pepper, K. A. Collins, P. Evans, H. Relles, R. J. Siverd, J. Bento, X. Yao, C. Stockdale, T.-G. Tan, G. Zhou, J. D. Eastman, M. D. Albrow, D. Bayliss, T. G. Beatty, P. Berlind, V. Bozza, M. L. Calkins, David H. Cohen, I. A. Curtis, G. A. Esquerdo, D. Feliz, B. J. Fulton, J. Gregorio, D. James, Eric L.N. Jensen, J. A. Johnson, S. A. Johnson, M. D. Joner, D. Kasper, J. F. Kielkopf, R. B. Kuhn, M. B. Lund, A. Malpas, M. Manner, N. Mccrady, K. K. Mcleod, T. E. Oberst, M. T. Penny, P. A. Reed, D. H. Sliski, D. C. Stephens, D. J. Stevens, S. Villanueva Jr., R. A. Wittenmyer, J. T. Wright, R. Zambelli
Physics & Astronomy Faculty Works
We present the discovery of KELT-22Ab, a hot Jupiter from the KELT-South survey. KELT-22Ab transits the moderately bright (V ~ 11.1) Sun-like G2V star TYC 7518-468-1. The planet has an orbital period of P = 1.3866529 ± 0.0000027 days, a radius of RP = 1.285 ((+0.12)/(=0.071)) RJ, and a relatively large mass of MP = 3.47 ((+0.15)/(=0.14)) MJ. The star has R★ = 1.099 ((+0.079)/(=0.046)) R⊙, M★ = 1.092 ((+0.045)/(-0.041) M⊙, Teff = 5767 ((+50)/(-49) K, log g★ = 4.393 ((+0.039)/(-0.060)) (cgs), and [m/H] = …
The Kelt Follow-Up Network And Transit False-Positive Catalog: Pre-Vetted False Positives For Tess, K. A. Collins, K. I. Collins, J. Pepper, J. Labadie-Bartz, K. G. Stassun, B. S. Gaudi, D. Bayliss, J. Bento, K. D. Colón, D. Feliz, D. James, M. C. Johnson, R. B. Kuhn, M. B. Lund, M. T. Penny, J. E. Rodriguez, R. J. Siverd, D. J. Stevens, X. Yao, G. Zhou, M. Akshay, G. F. Aldi, C. Ashcraft, S. Awiphan, Ö. Baştürk, D. Baker, T. G. Beatty, P. Benni, P. Berlind, G. B. Berriman, Z. Berta-Thompson, A. Bieryla, V. Bozza, S. C. Novati, M. L. Calkins, J. M. Cann, D. R. Ciardi, W. D. Cochran, David H. Cohen, D. Conti, J. R. Crepp, I. A. Curtis, G. D'Ago, K. A. Diazeguigure, C. D. Dressing, F. Dubois, E. Ellington, T. G. Ellis, G. A. Esquerdo, P. Evans, A. Friedli, A. Fukui, B. J. Fulton, E. J. Gonzales, J. C. Good, J. Gregorio, T. Gumusayak, D. A. Hancock, C. K. Harada, R. Hart, E. G. Hintz, H. Jang-Condell, E. J. Jeffery, Eric L.N. Jensen, E. Jofré, M. D. Joner, A. Kar, D. H. Kasper, B. Keten, J. F. Kielkopf, S. Komonjinda, C. Kotnik, D. W. Latham, J. Leuquire, T. R. Lewis, L. Logie, S. J. Lowther, P. J. Macqueen, T. J. Martin, D. Mawet, K. K. Mcleod, G. Murawski, N. Narita, J. Nordhausen, T. E. Oberst, C. Odden, P. A. Panka, R. Petrucci, P. Plavchan, S. N. Quinn, S. Rau, P. A. Reed, H. Relles, J. P. Renaud, G. Scarpetta, R. L. Sorber, A. D. Spencer, M. Spencer, D. C. Stephens, C. Stockdale, T.-G. Tan, M. Trueblood, P. Trueblood, S. Vanaverbeke, S. Villanueva Jr., E. M. Warner, M. L. West, S. Yalçınkaya, R. Yeigh, R. Zambelli
The Kelt Follow-Up Network And Transit False-Positive Catalog: Pre-Vetted False Positives For Tess, K. A. Collins, K. I. Collins, J. Pepper, J. Labadie-Bartz, K. G. Stassun, B. S. Gaudi, D. Bayliss, J. Bento, K. D. Colón, D. Feliz, D. James, M. C. Johnson, R. B. Kuhn, M. B. Lund, M. T. Penny, J. E. Rodriguez, R. J. Siverd, D. J. Stevens, X. Yao, G. Zhou, M. Akshay, G. F. Aldi, C. Ashcraft, S. Awiphan, Ö. Baştürk, D. Baker, T. G. Beatty, P. Benni, P. Berlind, G. B. Berriman, Z. Berta-Thompson, A. Bieryla, V. Bozza, S. C. Novati, M. L. Calkins, J. M. Cann, D. R. Ciardi, W. D. Cochran, David H. Cohen, D. Conti, J. R. Crepp, I. A. Curtis, G. D'Ago, K. A. Diazeguigure, C. D. Dressing, F. Dubois, E. Ellington, T. G. Ellis, G. A. Esquerdo, P. Evans, A. Friedli, A. Fukui, B. J. Fulton, E. J. Gonzales, J. C. Good, J. Gregorio, T. Gumusayak, D. A. Hancock, C. K. Harada, R. Hart, E. G. Hintz, H. Jang-Condell, E. J. Jeffery, Eric L.N. Jensen, E. Jofré, M. D. Joner, A. Kar, D. H. Kasper, B. Keten, J. F. Kielkopf, S. Komonjinda, C. Kotnik, D. W. Latham, J. Leuquire, T. R. Lewis, L. Logie, S. J. Lowther, P. J. Macqueen, T. J. Martin, D. Mawet, K. K. Mcleod, G. Murawski, N. Narita, J. Nordhausen, T. E. Oberst, C. Odden, P. A. Panka, R. Petrucci, P. Plavchan, S. N. Quinn, S. Rau, P. A. Reed, H. Relles, J. P. Renaud, G. Scarpetta, R. L. Sorber, A. D. Spencer, M. Spencer, D. C. Stephens, C. Stockdale, T.-G. Tan, M. Trueblood, P. Trueblood, S. Vanaverbeke, S. Villanueva Jr., E. M. Warner, M. L. West, S. Yalçınkaya, R. Yeigh, R. Zambelli
Physics & Astronomy Faculty Works
The Kilodegree Extremely Little Telescope (KELT) project has been conducting a photometric survey of transiting planets orbiting bright stars for over 10 years. The KELT images have a pixel scale of ~23'' pixel⁻¹—very similar to that of NASA's Transiting Exoplanet Survey Satellite (TESS)—as well as a large point-spread function, and the KELT reduction pipeline uses a weighted photometric aperture with radius 3'. At this angular scale, multiple stars are typically blended in the photometric apertures. In order to identify false positives and confirm transiting exoplanets, we have assembled a follow-up network (KELT-FUN) to conduct imaging with spatial resolution, cadence, and …
Multiple Stellar Flybys Sculpting The Circumstellar Architecture In Rw Aurigae, J. E. Rodriguez, R. Loomis, S. Cabrit, T. H. Haworth, S. Facchini, C. Dougados, R. A. Booth, Eric L.N. Jensen, C. J. Clarke, K. G. Stassun, W. R. F. Dent, J. Pety
Multiple Stellar Flybys Sculpting The Circumstellar Architecture In Rw Aurigae, J. E. Rodriguez, R. Loomis, S. Cabrit, T. H. Haworth, S. Facchini, C. Dougados, R. A. Booth, Eric L.N. Jensen, C. J. Clarke, K. G. Stassun, W. R. F. Dent, J. Pety
Physics & Astronomy Faculty Works
We present high-resolution ALMA Band 6 and 7 observations of the tidally disrupted protoplanetary disks of the RW Aurigae binary. Our observations reveal tidal streams in addition to the previously observed tidal arm around RW Aur A. The observed configuration of tidal streams surrounding RW Aur A and B is incompatible with a single star–disk tidal encounter, suggesting that the RW Aurigae system has undergone multiple flyby interactions. We also resolve the circumstellar disks around RW Aur A and B, with CO radii of 58 au and 38 au consistent with tidal truncation, and 2.5 times smaller dust emission radii. …
Kelt-21b: A Hot Jupiter Transiting The Rapidly Rotating Metal-Poor Late-A Primary Of A Likely Hierarchical Triple System, M. C. Johnson, J. E. Rodriguez, G. Zhou, E. J. Gonzales, P. A. Cargile, J. R. Crepp, K. Penev, K. G. Stassun, B. S. Gaudi, K. D. Colón, D. J. Stevens, K. G. Strassmeier, I. Ilyin, K. A. Collins, J. F. Kielkopf, T. E. Oberst, L. Maritch, P. A. Reed, J. Gregorio, V. Bozza, S. Calchi Novati, G. D'Ago, G. Scarpetta, R. Zambelli, D. W. Latham, A. Bieryla, W. D. Cochran, M. Endl, J. Tayar, A. Serenelli, V. S. Aguirre, S. P. Clarke, M. Martinez, M. Spencer, J. Trump, M. D. Joner, A. G. Bugg, E. G. Hintz, D. C. Stephens, A. Arredondo, A. Benzaid, S. Yazdi, K. K. Mcleod, Eric L.N. Jensen, D. A. Hancock, R. L. Sorber, D. H. Kasper, H. Jang-Condell, T. G. Beatty, T. Carroll, J. Eastman, D. James, R. B. Kuhn, J. Labadie-Bartz, M. B. Lund, M. Mallonn, J. Pepper, R. J. Siverd, X. Yao, David H. Cohen, I. A. Curtis, D. L. Depoy, B. J. Fulton, M. T. Penny, H. Relles, C. Stockdale, T.-G. Tan, S. Villanueva Jr.
Kelt-21b: A Hot Jupiter Transiting The Rapidly Rotating Metal-Poor Late-A Primary Of A Likely Hierarchical Triple System, M. C. Johnson, J. E. Rodriguez, G. Zhou, E. J. Gonzales, P. A. Cargile, J. R. Crepp, K. Penev, K. G. Stassun, B. S. Gaudi, K. D. Colón, D. J. Stevens, K. G. Strassmeier, I. Ilyin, K. A. Collins, J. F. Kielkopf, T. E. Oberst, L. Maritch, P. A. Reed, J. Gregorio, V. Bozza, S. Calchi Novati, G. D'Ago, G. Scarpetta, R. Zambelli, D. W. Latham, A. Bieryla, W. D. Cochran, M. Endl, J. Tayar, A. Serenelli, V. S. Aguirre, S. P. Clarke, M. Martinez, M. Spencer, J. Trump, M. D. Joner, A. G. Bugg, E. G. Hintz, D. C. Stephens, A. Arredondo, A. Benzaid, S. Yazdi, K. K. Mcleod, Eric L.N. Jensen, D. A. Hancock, R. L. Sorber, D. H. Kasper, H. Jang-Condell, T. G. Beatty, T. Carroll, J. Eastman, D. James, R. B. Kuhn, J. Labadie-Bartz, M. B. Lund, M. Mallonn, J. Pepper, R. J. Siverd, X. Yao, David H. Cohen, I. A. Curtis, D. L. Depoy, B. J. Fulton, M. T. Penny, H. Relles, C. Stockdale, T.-G. Tan, S. Villanueva Jr.
Physics & Astronomy Faculty Works
We present the discovery of KELT-21b, a hot Jupiter transiting the V = 10.5 A8V star HD 332124. The planet has an orbital period of P = 3.6127647 ± 0.0000033 days and a radius of 1.586 (+0.039)/(-0.040) RJ. We set an upper limit on the planetary mass of MP < 3.91 MJ at 3σ confidence. We confirmed the planetary nature of the transiting companion using this mass limit and Doppler tomographic observations to verify that the companion transits HD 332124. These data also demonstrate that the planetary orbit is well-aligned with the stellar spin, with a sky-projected …
Kelt-19ab: A P ∼ 4.6-Day Hot Jupiter Transiting A Likely Am Star With A Distant Stellar Companion, R. J. Siverd, K. A. Collins, G. Zhou, S. N. Quinn, B. S. Gaudi, K. G. Stassun, M. C. Johnson, A. Bieryla, D. W. Latham, D. R. Ciardi, J. E. Rodriguez, K. Penev, M. Pinsonneault, J. Pepper, J. D. Eastman, H. Relles, J. F. Kielkopf, J. Gregorio, T. E. Oberst, G. F. Aldi, G. A. Esquerdo, M. L. Calkins, P. Berlind, C. D. Dressing, R. Patel, D. J. Stevens, T. G. Beatty, M. B. Lund, J. Labadie-Bartz, R. B. Kuhn, K. D. Colón, D. James, X. Yao, J. A. Johnson, J. T. Wright, N. Mccrady, R. A. Wittenmyer, S. A. Johnson, D. H. Sliski, Eric L.N. Jensen, David H. Cohen, K. K. Mcleod, M. T. Penny, M. D. Joner, D. C. Stephens, S. Villanueva Jr., R. Zambelli, C. Stockdale, P. Evans, T.-G. Tan, I. A. Curtis, P. A. Reed, M. Trueblood, P. Trueblood
Kelt-19ab: A P ∼ 4.6-Day Hot Jupiter Transiting A Likely Am Star With A Distant Stellar Companion, R. J. Siverd, K. A. Collins, G. Zhou, S. N. Quinn, B. S. Gaudi, K. G. Stassun, M. C. Johnson, A. Bieryla, D. W. Latham, D. R. Ciardi, J. E. Rodriguez, K. Penev, M. Pinsonneault, J. Pepper, J. D. Eastman, H. Relles, J. F. Kielkopf, J. Gregorio, T. E. Oberst, G. F. Aldi, G. A. Esquerdo, M. L. Calkins, P. Berlind, C. D. Dressing, R. Patel, D. J. Stevens, T. G. Beatty, M. B. Lund, J. Labadie-Bartz, R. B. Kuhn, K. D. Colón, D. James, X. Yao, J. A. Johnson, J. T. Wright, N. Mccrady, R. A. Wittenmyer, S. A. Johnson, D. H. Sliski, Eric L.N. Jensen, David H. Cohen, K. K. Mcleod, M. T. Penny, M. D. Joner, D. C. Stephens, S. Villanueva Jr., R. Zambelli, C. Stockdale, P. Evans, T.-G. Tan, I. A. Curtis, P. A. Reed, M. Trueblood, P. Trueblood
Physics & Astronomy Faculty Works
We present the discovery of the giant planet KELT-19Ab, which transits the moderately bright (V ~ 9.9) A8V star TYC 764-1494-1 with an orbital period of 4.61 days. We confirm the planetary nature of the companion via a combination of radial velocities, which limit the mass to ≲ 4.1 MJ (3σ), and a clear Doppler tomography signal, which indicates a retrograde projected spin–orbit misalignment of λ = -179.7 (+3.7)/(-3.8) degrees. Global modeling indicates that the Teff = 7500 ± 110 K host star has M* = 1.62 (+0.25)/(-0.20) M⊙ and R* = …
The Architecture Of The Gw Ori Young Triple-Star System And Its Disk: Dynamical Masses, Mutual Inclinations, And Recurrent Eclipses, I. Czekala, S. M. Andrews, G. Torres, J. E. Rodriguez, Eric L.N. Jensen, K. G. Stassun, D. W. Latham, D. J. Wilner, M. A. Gully-Santiago, K. N. Grankin, M. B. Lund, R. B. Kuhn, D. J. Stevens, R. J. Siverd, D. James, B. S. Gaudi, B. J. Shappee, T. W.-S. Holoien
The Architecture Of The Gw Ori Young Triple-Star System And Its Disk: Dynamical Masses, Mutual Inclinations, And Recurrent Eclipses, I. Czekala, S. M. Andrews, G. Torres, J. E. Rodriguez, Eric L.N. Jensen, K. G. Stassun, D. W. Latham, D. J. Wilner, M. A. Gully-Santiago, K. N. Grankin, M. B. Lund, R. B. Kuhn, D. J. Stevens, R. J. Siverd, D. James, B. S. Gaudi, B. J. Shappee, T. W.-S. Holoien
Physics & Astronomy Faculty Works
We present spatially and spectrally resolved Atacama Large Millimeter/submillimeter Array (ALMA) observations of gas and dust orbiting the pre-main-sequence hierarchical triple-star system GW Ori. A forward modeling of the ¹³CO and C¹8O J = 2–1 transitions permits a measurement of the total stellar mass in this system, 5.29 ± 0.09 M⊙, and the circumtriple disk inclination, 137 fdg 6 ± 2 fdg 0. Optical spectra spanning a 35 yr period were used to derive new radial velocities and, coupled with a spectroscopic disentangling technique, revealed that the A and B components of GW Ori form a …
Kelt-20b: A Giant Planet With A Period Of P ~ 3.5 Days Transiting The V ~ 7.6 Early A Star Hd 185603, M. B. Lund, J. E. Rodriguez, G. Zhou, B. S. Gaudi, K. G. Stassun, M. C. Johnson, A. Bieryla, R. J. Oelkers, D. J. Stevens, K. A. Collins, K. Penev, S. N. Quinn, D. W. Latham, S. Villanueva Jr., J. D. Eastman, J. F. Kielkopf, T. E. Oberst, Eric L.N. Jensen, David H. Cohen, M. D. Joner, D. C. Stephens, H. Relles, G. Corfini, J. Gregorio, R. Zambelli, G. A. Esquerdo, M. L. Calkins, P. Berlind, D. R. Ciardi, C. Dressing, R. Patel, P. Gagnon, E. Gonzales, T. G. Beatty, R. J. Siverd, J. Labadie-Bartz, R. B. Kuhn, K. D. Colón, D. James, J. Pepper, B. J. Fulton, K. K. Mcleod, C. Stockdale, S. Calchi Novati, D. L. Depoy, A. Gould, J. L. Marshall, M. Trueblood, P. Trueblood, J. A. Johnson, J. Wright, N. Mccrady, R. A. Wittenmyer, S. A. Johnson, A. Sergi, M. Wilson, D. H. Sliski
Kelt-20b: A Giant Planet With A Period Of P ~ 3.5 Days Transiting The V ~ 7.6 Early A Star Hd 185603, M. B. Lund, J. E. Rodriguez, G. Zhou, B. S. Gaudi, K. G. Stassun, M. C. Johnson, A. Bieryla, R. J. Oelkers, D. J. Stevens, K. A. Collins, K. Penev, S. N. Quinn, D. W. Latham, S. Villanueva Jr., J. D. Eastman, J. F. Kielkopf, T. E. Oberst, Eric L.N. Jensen, David H. Cohen, M. D. Joner, D. C. Stephens, H. Relles, G. Corfini, J. Gregorio, R. Zambelli, G. A. Esquerdo, M. L. Calkins, P. Berlind, D. R. Ciardi, C. Dressing, R. Patel, P. Gagnon, E. Gonzales, T. G. Beatty, R. J. Siverd, J. Labadie-Bartz, R. B. Kuhn, K. D. Colón, D. James, J. Pepper, B. J. Fulton, K. K. Mcleod, C. Stockdale, S. Calchi Novati, D. L. Depoy, A. Gould, J. L. Marshall, M. Trueblood, P. Trueblood, J. A. Johnson, J. Wright, N. Mccrady, R. A. Wittenmyer, S. A. Johnson, A. Sergi, M. Wilson, D. H. Sliski
Physics & Astronomy Faculty Works
We report the discovery of KELT-20b, a hot Jupiter transiting a early A star, HD 185603, with an orbital period of days. Archival and follow-up photometry, Gaia parallax, radial velocities, Doppler tomography, and AO imaging were used to confirm the planetary nature of KELT-20b and characterize the system. From global modeling we infer that KELT-20 is a rapidly rotating ( ) A2V star with an effective temperature of K, mass of , radius of , surface gravity of , and age of . The planetary companion has a radius of , a semimajor axis of au, and a linear ephemeris …
A Bright Short Period M-M Eclipsing Binary From The Kelt Survey: Magnetic Activity And The Mass–Radius Relationship For M Dwarfs, J. B. Lubin, J. E. Rodriguez, G. Zhou, K. E. Conroy, K. G. Stassun, K. Collins, D. J. Stevens, J. Labadie-Bartz, C. Stockdale, G. Myers, K. D. Colón, J. Bento, P. Kehusmaa, R. Petrucci, E. Jofré, S. N. Quinn, M. B. Lund, R. B. Kuhn, R. J. Siverd, T. G. Beatty, C. Harlingten, J. Pepper, B. S. Gaudi, D. James, Eric L.N. Jensen, D. Reichart, L. Kedziora-Chudczer, J. Bailey, G. Melville
A Bright Short Period M-M Eclipsing Binary From The Kelt Survey: Magnetic Activity And The Mass–Radius Relationship For M Dwarfs, J. B. Lubin, J. E. Rodriguez, G. Zhou, K. E. Conroy, K. G. Stassun, K. Collins, D. J. Stevens, J. Labadie-Bartz, C. Stockdale, G. Myers, K. D. Colón, J. Bento, P. Kehusmaa, R. Petrucci, E. Jofré, S. N. Quinn, M. B. Lund, R. B. Kuhn, R. J. Siverd, T. G. Beatty, C. Harlingten, J. Pepper, B. S. Gaudi, D. James, Eric L.N. Jensen, D. Reichart, L. Kedziora-Chudczer, J. Bailey, G. Melville
Physics & Astronomy Faculty Works
We report the discovery of KELT J041621-620046, a moderately bright (J ~ 10.2) M-dwarf eclipsing binary system at a distance of 39 ± 3 pc. KELT J041621-620046 was first identified as an eclipsing binary using observations from the Kilodegree Extremely Little Telescope (KELT) survey. The system has a short orbital period of ~1.11 days and consists of components with and in nearly circular orbits. The radii of the two stars are and . Full system and orbital properties were determined (to ∼10% error) by conducting an EBOP (Eclipsing Binary Orbit Program) global modeling of the high precision photometric and spectroscopic …
A Giant Planet Undergoing Extreme-Ultraviolet Irradiation By Its Hot Massive-Star Host, B. S. Gaudi, K. G. Stassun, K. A. Collins, T. G. Beatty, G. Zhou, D. W. Latham, A. Bieryla, J. D. Eastman, R. J. Siverd, J. R. Crepp, E. J. Gonzales, D. J. Stevens, L. A. Buchhave, J. Pepper, M. C. Johnson, K. D. Colón, Eric L.N. Jensen, J. E. Rodriguez, V. Bozza, S. C. Novati, G. D’Ago, M. T. Dumont, T. Ellis, C. Gaillard, H. Jang-Condell, D. H. Kasper, A. Fukui, J. Gregorio, A. Ito, J. F. Kielkopf, M. Manner, K. Matt, N. Narita, T. E. Oberst, P. A. Reed, G. Scarpetta, D. C. Stephens, R. R. Yeigh, R. Zambelli, B. J. Fulton, A. W. Howard, D. J. James, M. Penny, D. Bayliss, I. A. Curtis, D. L. Depoy, G. A. Esquerdo, A. Gould, M. D. Joner, R. B. Kuhn, J. Labadie-Bartz, M. B. Lund, J. L. Marshall, K. K. Mcleod, R. W. Pogge, H. Relles, C. Stockdale, T. G. Tan, M. Trueblood, P. Trueblood
A Giant Planet Undergoing Extreme-Ultraviolet Irradiation By Its Hot Massive-Star Host, B. S. Gaudi, K. G. Stassun, K. A. Collins, T. G. Beatty, G. Zhou, D. W. Latham, A. Bieryla, J. D. Eastman, R. J. Siverd, J. R. Crepp, E. J. Gonzales, D. J. Stevens, L. A. Buchhave, J. Pepper, M. C. Johnson, K. D. Colón, Eric L.N. Jensen, J. E. Rodriguez, V. Bozza, S. C. Novati, G. D’Ago, M. T. Dumont, T. Ellis, C. Gaillard, H. Jang-Condell, D. H. Kasper, A. Fukui, J. Gregorio, A. Ito, J. F. Kielkopf, M. Manner, K. Matt, N. Narita, T. E. Oberst, P. A. Reed, G. Scarpetta, D. C. Stephens, R. R. Yeigh, R. Zambelli, B. J. Fulton, A. W. Howard, D. J. James, M. Penny, D. Bayliss, I. A. Curtis, D. L. Depoy, G. A. Esquerdo, A. Gould, M. D. Joner, R. B. Kuhn, J. Labadie-Bartz, M. B. Lund, J. L. Marshall, K. K. Mcleod, R. W. Pogge, H. Relles, C. Stockdale, T. G. Tan, M. Trueblood, P. Trueblood
Physics & Astronomy Faculty Works
The amount of ultraviolet irradiation and ablation experienced by a planet depends strongly on the temperature of its host star. Of the thousands of extrasolar planets now known, only six have been found that transit hot, A-type stars (with temperatures of 7,300–10,000 kelvin), and no planets are known to transit the even hotter B-type stars. For example, WASP-33 is an A-type star with a temperature of about 7,430 kelvin, which hosts the hottest known transiting planet, WASP-33b (ref. 1); the planet is itself as hot as a red dwarf star of type M (ref. 2). WASP-33b displays a large heat …
Kelt-18b: Puffy Planet, Hot Host, Probably Perturbed, K. K. Mcleod, J. E. Rodriguez, R. J. Oelkers, K. A. Collins, A. Bieryla, B. J. Fulton, K. G. Stassun, B. S. Gaudi, K. Penev, D. J. Stevens, K. D. Colón, J. Pepper, N. Narita, R. Tsuguru, A. Fukui, P. A. Reed, B. Tirrell, T. Visgaitis, J. F. Kielkopf, David H. Cohen, Eric L.N. Jensen, J. Gregorio, Ö. Baştürk, T. E. Oberst, C. Melton, E. M.-R. Kempton, A. Baldrige, Y. S. Zhao, R. Zambelli, D. W. Latham, G. A. Esquerdo, P. Berlind, M. L. Calkins, A. W. Howard, H. Isaacson, L. M. Weiss, P. Benni, T. G. Beatty, J. D. Eastman, M. T. Penny, R. J. Siverd, M. B. Lund, J. Labadie-Bartz, G. Zhou, I. A. Curtis, M. D. Joner, M. Manner, H. Relles, G. Scarpetta, D. C. Stephens, C. Stockdale, T. G. Tan, D. L. Depoy, J. L. Marshall, R. W. Pogge, M. Trueblood, P. Trueblood
Kelt-18b: Puffy Planet, Hot Host, Probably Perturbed, K. K. Mcleod, J. E. Rodriguez, R. J. Oelkers, K. A. Collins, A. Bieryla, B. J. Fulton, K. G. Stassun, B. S. Gaudi, K. Penev, D. J. Stevens, K. D. Colón, J. Pepper, N. Narita, R. Tsuguru, A. Fukui, P. A. Reed, B. Tirrell, T. Visgaitis, J. F. Kielkopf, David H. Cohen, Eric L.N. Jensen, J. Gregorio, Ö. Baştürk, T. E. Oberst, C. Melton, E. M.-R. Kempton, A. Baldrige, Y. S. Zhao, R. Zambelli, D. W. Latham, G. A. Esquerdo, P. Berlind, M. L. Calkins, A. W. Howard, H. Isaacson, L. M. Weiss, P. Benni, T. G. Beatty, J. D. Eastman, M. T. Penny, R. J. Siverd, M. B. Lund, J. Labadie-Bartz, G. Zhou, I. A. Curtis, M. D. Joner, M. Manner, H. Relles, G. Scarpetta, D. C. Stephens, C. Stockdale, T. G. Tan, D. L. Depoy, J. L. Marshall, R. W. Pogge, M. Trueblood, P. Trueblood
Physics & Astronomy Faculty Works
We report the discovery of KELT-18b, a transiting hot Jupiter in a 2.87-day orbit around the bright ( V = 10.1), hot, F4V star BD+60 1538 (TYC 3865-1173-1). We present follow-up photometry, spectroscopy, and adaptive optics imaging that allow a detailed characterization of the system. Our preferred model fits yield a host stellar temperature of K and a mass of , situating it as one of only a handful of known transiting planets with hosts that are as hot, massive, and bright. The planet has a mass of , a radius of , and a density of , making it …
Kelt-11b: A Highly Inflated Sub-Saturn Exoplanet Transiting The V = 8 Subgiant Hd 93396, J. Pepper, J. E. Rodriguez, K. A. Collins, J. A. Johnson, B. J. Fulton, A. W. Howard, T. G. Beatty, K. G. Stassun, H. Isaacson, K. D. Colón, M. B. Lund, R. B. Kuhn, R. J. Siverd, B. S. Gaudi, T. G. Tan, I. Curtis, C. Stockdale, D. Mawet, M. Bottom, D. James, G. Zhou, D. Bayliss, P. Cargile, A. Bieryla, K. Penev, D. W. Latham, J. Labadie-Bartz, J. Kielkopf, J. D. Eastman, T. E. Oberst, Eric L.N. Jensen, P. Nelson, D. H. Sliski, R. A. Wittenmyer, N. Mccrady, J. T. Wright, H. M. Relles, D. J. Stevens, M. D. Joner, E. Hintz
Kelt-11b: A Highly Inflated Sub-Saturn Exoplanet Transiting The V = 8 Subgiant Hd 93396, J. Pepper, J. E. Rodriguez, K. A. Collins, J. A. Johnson, B. J. Fulton, A. W. Howard, T. G. Beatty, K. G. Stassun, H. Isaacson, K. D. Colón, M. B. Lund, R. B. Kuhn, R. J. Siverd, B. S. Gaudi, T. G. Tan, I. Curtis, C. Stockdale, D. Mawet, M. Bottom, D. James, G. Zhou, D. Bayliss, P. Cargile, A. Bieryla, K. Penev, D. W. Latham, J. Labadie-Bartz, J. Kielkopf, J. D. Eastman, T. E. Oberst, Eric L.N. Jensen, P. Nelson, D. H. Sliski, R. A. Wittenmyer, N. Mccrady, J. T. Wright, H. M. Relles, D. J. Stevens, M. D. Joner, E. Hintz
Physics & Astronomy Faculty Works
We report the discovery of a transiting exoplanet, KELT-11b, orbiting the bright (V = 8.0) subgiant HD 93396. A global analysis of the system shows that the host star is an evolved subgiant star with Teff = 5370 ± 51 K, M* = 1.438 (+0.061)/(-0.052) M⊙, R* = 2.72 (+0.21)/(-0.17) R⊙, logg* = 3.727 (+0.040)/(-0.046), and [Fe/H] = 0.180 ± 0.075. The planet is a low-mass gas giant in a P = 4.736529 ± 0.00006 day orbit, with MP = 0.195 ± 0.018 MJ, RP = …
Kelt-12b: A P ~ 5 Day, Highly Inflated Hot Jupiter Transiting A Mildly Evolved Hot Star, D. J. Stevens, K. A. Collins, B. S. Gaudi, T. G. Beatty, R. J. Siverd, A. Bieryla, B. J. Fulton, J. R. Crepp, E. J. Gonzales, C. T. Coker, K. Penev, K. G. Stassun, Eric L.N. Jensen, A. W. Howard, D. W. Latham, J. E. Rodriguez, R. Zambelli, V. Bozza, P. A. Reed, J. Gregorio, L. A. Buchhave, M. T. Penny, J. Pepper, P. Berlind, S. Calchi Novati, M. L. Calkins, G. D'Ago, J. D. Eastman, D. Bayliss, K. D. Colón, I. A. Curtis, D. L. Depoy, G. A. Esquerdo, A. Gould, M. D. Joner, J. F. Kielkopf, J. Labadie-Bartz, M. B. Lund, M. Manner, J. L. Marshall, K. K. Mcleod, T. E. Oberst, R. W. Pogge, G. Scarpetta, D. C. Stephens, C. Stockdale, T. G. Tan, M. Trueblood, P. Trueblood
Kelt-12b: A P ~ 5 Day, Highly Inflated Hot Jupiter Transiting A Mildly Evolved Hot Star, D. J. Stevens, K. A. Collins, B. S. Gaudi, T. G. Beatty, R. J. Siverd, A. Bieryla, B. J. Fulton, J. R. Crepp, E. J. Gonzales, C. T. Coker, K. Penev, K. G. Stassun, Eric L.N. Jensen, A. W. Howard, D. W. Latham, J. E. Rodriguez, R. Zambelli, V. Bozza, P. A. Reed, J. Gregorio, L. A. Buchhave, M. T. Penny, J. Pepper, P. Berlind, S. Calchi Novati, M. L. Calkins, G. D'Ago, J. D. Eastman, D. Bayliss, K. D. Colón, I. A. Curtis, D. L. Depoy, G. A. Esquerdo, A. Gould, M. D. Joner, J. F. Kielkopf, J. Labadie-Bartz, M. B. Lund, M. Manner, J. L. Marshall, K. K. Mcleod, T. E. Oberst, R. W. Pogge, G. Scarpetta, D. C. Stephens, C. Stockdale, T. G. Tan, M. Trueblood, P. Trueblood
Physics & Astronomy Faculty Works
We announce the discovery of KELT-12b, a highly inflated Jupiter-mass planet transiting the mildly evolved, V = 10.64 host star TYC 2619-1057-1. We followed up the initial transit signal in the KELT-North survey data with precise ground-based photometry, high-resolution spectroscopy, precise radial velocity measurements, and high-resolution adaptive optics imaging. Our preferred best-fit model indicates that the host star has = 6279 ± 51 K, = 3.89 ± 0.05,[Fe/H] = , = , and = 2.37 ± 0.17 . The planetary companion has = 0.95 ± 0.14 , = , = , and density = g cm −3 , making it …
Magnetic Massive Stars As Progenitors Of ‘Heavy’ Stellar-Mass Black Holes, V. Petit, Z. Keszthelyi, R. Macinnis, David H. Cohen, R. H. D. Townsend, G. A. Wade, S. L. Thomas, S. P. Owocki, J. Puls, A. Ud-Doula
Magnetic Massive Stars As Progenitors Of ‘Heavy’ Stellar-Mass Black Holes, V. Petit, Z. Keszthelyi, R. Macinnis, David H. Cohen, R. H. D. Townsend, G. A. Wade, S. L. Thomas, S. P. Owocki, J. Puls, A. Ud-Doula
Physics & Astronomy Faculty Works
The groundbreaking detection of gravitational waves produced by the inspiralling and coalescence of the black hole (BH) binary GW150914 confirms the existence of ‘heavy’ stellar-mass BHs with masses >25 M⊙. Initial characterization of the system by Abbott et al. supposes that the formation of BHs with such large masses from the evolution of single massive stars is only feasible if the wind mass-loss rates of the progenitors were greatly reduced relative to the mass-loss rates of massive stars in the Galaxy, concluding that heavy BHs must form in low-metallicity (Z ≲ 0.25-0.5 Z⊙) environments. However, strong surface magnetic fields also …