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Full-Text Articles in Physical Sciences and Mathematics
Tess Hunt For Young And Maturing Exoplanets (Thyme). Iv. Three Small Planets Orbiting A 120 Myr Old Star In The Pisces–Eridanus Stream, E. R. Newton, A. W. Mann, A. L. Kraus, J. H. Livingston, A. Vanderburg, J. L. Curtis, P. C. Thao, K. Hawkins, M. L. Wood, A. C. Rizzuto, A. Soubkiou, B. M. Tofflemire, G. Zhou, I. J. M. Crossfield, L. A. Pearce, K. A. Collins, D. M. Conti, T.-G. Tan, S. Villanueva, A. Spencer, D. Dragomir, S. M. Quinn, Eric L.N. Jensen, K. I. Collins, C. Stockdale, R. Cloutier, C. Hellier, Z. Benkhaldoun, C. Ziegler, C. Briceño, N. Law, B. Benneke, J. L. Christiansen, V. Gorjian, S. R. Kane, L. Kreidberg, F. Y. Morales, M. W. Werner, J. D. Twicken, A. M. Levine, D. R. Ciardi, N. M. Guerrero, K. Hesse, E. V. Quintana, B. Shiao, J. C. Smith, G. Torres, G. R. Ricker, R. Vanderspek, S. Seager, J. N. Winn, J. M. Jenkins, D. W. Latham
Tess Hunt For Young And Maturing Exoplanets (Thyme). Iv. Three Small Planets Orbiting A 120 Myr Old Star In The Pisces–Eridanus Stream, E. R. Newton, A. W. Mann, A. L. Kraus, J. H. Livingston, A. Vanderburg, J. L. Curtis, P. C. Thao, K. Hawkins, M. L. Wood, A. C. Rizzuto, A. Soubkiou, B. M. Tofflemire, G. Zhou, I. J. M. Crossfield, L. A. Pearce, K. A. Collins, D. M. Conti, T.-G. Tan, S. Villanueva, A. Spencer, D. Dragomir, S. M. Quinn, Eric L.N. Jensen, K. I. Collins, C. Stockdale, R. Cloutier, C. Hellier, Z. Benkhaldoun, C. Ziegler, C. Briceño, N. Law, B. Benneke, J. L. Christiansen, V. Gorjian, S. R. Kane, L. Kreidberg, F. Y. Morales, M. W. Werner, J. D. Twicken, A. M. Levine, D. R. Ciardi, N. M. Guerrero, K. Hesse, E. V. Quintana, B. Shiao, J. C. Smith, G. Torres, G. R. Ricker, R. Vanderspek, S. Seager, J. N. Winn, J. M. Jenkins, D. W. Latham
Physics & Astronomy Faculty Works
Young exoplanets can offer insight into the evolution of planetary atmospheres, compositions, and architectures. We present the discovery of the young planetary system TOI 451 (TIC 257605131, Gaia DR2 4844691297067063424). TOI 451 is a member of the 120 Myr old Pisces–Eridanus stream (Psc–Eri). We confirm membership in the stream with its kinematics, its lithium abundance, and the rotation and UV excesses of both TOI 451 and its wide-binary companion, TOI 451 B (itself likely an M-dwarf binary). We identified three candidate planets transiting in the Transiting Exoplanet Survey Satellite data and followed up the signals with photometry from Spitzer and …
The Tess-Keck Survey. Ii. An Ultra-Short-Period Rocky Planet And Its Siblings Transiting The Galactic Thick-Disk Star Toi-561, L. M. Weiss, F. Dai, D. Huber, J. M. Brewer, K. A. Collins, D. R. Ciardi, E. C. Matthews, C. Ziegler, S. B. Howell, N. M. Batalha, I. J. M. Crossfield, C. Dressing, B. Fulton, A. W. Howard, H. Isaacson, S. R. Kane, E. A. Petigura, P. Robertson, A. Roy, R. A. Rubenzahl, J. D. Twicken, Z. R. Claytor, K. G. Stassun, M. G. Macdougall, A. Chontos, S. Giacalone, P. A. Dalba, T. Mocnik, M. L. Hill, C. Beard, J. M. Akana Murphy, L. J. Rosenthal, A. Behmard, J. Van Zandt, J. Lubin, M. R. Kosiarek, M. B. Lund, J. L. Christiansen, R. A. Matson, C. A. Beichman, J. E. Schlieder, E. J. Gonzales, C. Briceño, N. Law, A. W. Mann, K. I. Collins, P. Evans, A. Fukui, Eric L.N. Jensen, F. Murgas, N. Narita, E. Palle, H. Parviainen, R. P. Schwarz, T.-G. Tan, J. S. Acton, P. Eigmüller, J. Jenkins, G. Ricker, S. Seager, J. N. Winn
The Tess-Keck Survey. Ii. An Ultra-Short-Period Rocky Planet And Its Siblings Transiting The Galactic Thick-Disk Star Toi-561, L. M. Weiss, F. Dai, D. Huber, J. M. Brewer, K. A. Collins, D. R. Ciardi, E. C. Matthews, C. Ziegler, S. B. Howell, N. M. Batalha, I. J. M. Crossfield, C. Dressing, B. Fulton, A. W. Howard, H. Isaacson, S. R. Kane, E. A. Petigura, P. Robertson, A. Roy, R. A. Rubenzahl, J. D. Twicken, Z. R. Claytor, K. G. Stassun, M. G. Macdougall, A. Chontos, S. Giacalone, P. A. Dalba, T. Mocnik, M. L. Hill, C. Beard, J. M. Akana Murphy, L. J. Rosenthal, A. Behmard, J. Van Zandt, J. Lubin, M. R. Kosiarek, M. B. Lund, J. L. Christiansen, R. A. Matson, C. A. Beichman, J. E. Schlieder, E. J. Gonzales, C. Briceño, N. Law, A. W. Mann, K. I. Collins, P. Evans, A. Fukui, Eric L.N. Jensen, F. Murgas, N. Narita, E. Palle, H. Parviainen, R. P. Schwarz, T.-G. Tan, J. S. Acton, P. Eigmüller, J. Jenkins, G. Ricker, S. Seager, J. N. Winn
Physics & Astronomy Faculty Works
We report the discovery of TOI-561, a multiplanet system in the galactic thick disk that contains a rocky, ultra-short-period planet. This bright (V = 10.2) star hosts three small transiting planets identified in photometry from the NASA TESS mission: TOI-561 b (TOI-561.02, P = 0.44 days, Rp = 1.45 ± 0.11 R⊕), c (TOI-561.01, P = 10.8 days, Rp = 2.90 ± 0.13 R⊕), and d (TOI-561.03, P = 16.3 days, Rp = 2.32 ± 0.16 R⊕). The star is chemically ([Fe/H] = −0.41 ± 0.05, [α/Fe] = +0.23 ± 0.05) and kinematically consistent with the galactic thick-disk population, making …
Two Young Planetary Systems Around Field Stars With Ages Between 20 And 320 Myr From Tess, G. Zhou, S. N. Quinn, J. Irwin, C. X. Huang, K. A. Collins, L. G. Bouma, L. Khan, A. Landrigan, A. M. Vanderburg, J. E. Rodriguez, D. W. Latham, G. Torres, S. T. Douglas, A. Bieryla, G. A. Esquerdo, P. Berlind, M. L. Calkins, L. A. Buchhave, D. Charbonneau, K. I. Collins, J. F. Kielkopf, Eric L.N. Jensen, T.-G. Tan, R. Hart, B. Carter, C. Stockdale, C. Ziegler, N. Law, A. W. Mann, S. B. Howell, R. A. Matson, N. J. Scott, E. Furlan, R. J. White, C. Hellier, D. R. Anderson, R. G. West, G. Ricker, R. Vanderspek, S. Seager, J. M. Jenkins, J. N. Winn, I. Mireles, P. Rowden, D. A. Yahalomi, B. Wohler, C. E. Brasseur, T. Daylan, K. D. Colón
Two Young Planetary Systems Around Field Stars With Ages Between 20 And 320 Myr From Tess, G. Zhou, S. N. Quinn, J. Irwin, C. X. Huang, K. A. Collins, L. G. Bouma, L. Khan, A. Landrigan, A. M. Vanderburg, J. E. Rodriguez, D. W. Latham, G. Torres, S. T. Douglas, A. Bieryla, G. A. Esquerdo, P. Berlind, M. L. Calkins, L. A. Buchhave, D. Charbonneau, K. I. Collins, J. F. Kielkopf, Eric L.N. Jensen, T.-G. Tan, R. Hart, B. Carter, C. Stockdale, C. Ziegler, N. Law, A. W. Mann, S. B. Howell, R. A. Matson, N. J. Scott, E. Furlan, R. J. White, C. Hellier, D. R. Anderson, R. G. West, G. Ricker, R. Vanderspek, S. Seager, J. M. Jenkins, J. N. Winn, I. Mireles, P. Rowden, D. A. Yahalomi, B. Wohler, C. E. Brasseur, T. Daylan, K. D. Colón
Physics & Astronomy Faculty Works
Planets around young stars trace the early evolution of planetary systems. We report the discovery and validation of two planetary systems with ages lesssim300 Myr from observations by the Transiting Exoplanet Survey Satellite (TESS). The $40\mbox{--}320$Myr old G star TOI-251 hosts a ${2.74}_{-0.18}^{+0.18}\,{R}_{\oplus }$mini-Neptune with a $4.94$day period. The $20\mbox{--}160$Myr old K star TOI-942 hosts a system of inflated Neptune-sized planets, with TOI-942b orbiting in a period of $4.32$days with a radius of ${4.81}_{-0.20}^{+0.20}\,{R}_{\oplus }$and TOI-942c orbiting in a period of $10.16$days with a radius of ${5.79}_{-0.18}^{+0.19}\,{R}_{\oplus }$. Though we cannot place either host star into a known stellar association …