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Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Astrophysics and Astronomy

Swarthmore College

Series

2021

Planets and satellites: detection

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Mass And Density Of The Transiting Hot And Rocky Super-Earth Lhs 1478 B (Toi-1640 B), M. G. Soto, G. Anglada-Escudé, S. Dreizler, K. Molaverdikhani, J. Kemmer, C. Rodríguez-López, J. Lillo-Box, E. Pallé, N. Espinoza, J. A. Caballero, A. Quirrenbach, I. Ribas, A. Reiners, N. Narita, T. Hirano, P. J. Amado, V. J. S. Béjar, P. Bluhm, C. J. Burke, D. A. Caldwell, D. Charbonneau, R. Cloutier, K. A. Collins, M. Cortés-Contreras, E. Girardin, P. Guerra, H. Harakawa, A. P. Hatzes, J. Irwin, J. M. Jenkins, Eric L.N. Jensen, K. Kawauchi, T. Kotani, T. Kudo, M. Kunimoto, M. Kuzuhara, D. W. Latham, D. Montes, J. C. Morales, M. Mori, R. P. Nelson, M. Omiya, S. Pedraz, V. M. Passegger, B. V. Rackham, A. Rudat, J. E. Schlieder, P. Schöfer, A. Schweitzer, A. Selezneva, C. Stockdale, M. Tamura, T. Trifonov, R. Vanderspek, D. Watanabe May 2021

Mass And Density Of The Transiting Hot And Rocky Super-Earth Lhs 1478 B (Toi-1640 B), M. G. Soto, G. Anglada-Escudé, S. Dreizler, K. Molaverdikhani, J. Kemmer, C. Rodríguez-López, J. Lillo-Box, E. Pallé, N. Espinoza, J. A. Caballero, A. Quirrenbach, I. Ribas, A. Reiners, N. Narita, T. Hirano, P. J. Amado, V. J. S. Béjar, P. Bluhm, C. J. Burke, D. A. Caldwell, D. Charbonneau, R. Cloutier, K. A. Collins, M. Cortés-Contreras, E. Girardin, P. Guerra, H. Harakawa, A. P. Hatzes, J. Irwin, J. M. Jenkins, Eric L.N. Jensen, K. Kawauchi, T. Kotani, T. Kudo, M. Kunimoto, M. Kuzuhara, D. W. Latham, D. Montes, J. C. Morales, M. Mori, R. P. Nelson, M. Omiya, S. Pedraz, V. M. Passegger, B. V. Rackham, A. Rudat, J. E. Schlieder, P. Schöfer, A. Schweitzer, A. Selezneva, C. Stockdale, M. Tamura, T. Trifonov, R. Vanderspek, D. Watanabe

Physics & Astronomy Faculty Works

One of the main objectives of the Transiting Exoplanet Survey Satellite (TESS) mission is the discovery of small rocky planets around relatively bright nearby stars. Here, we report the discovery and characterization of the transiting super-Earth planet orbiting LHS 1478 (TOI-1640). The star is an inactive red dwarf (J ~ 9.6 mag and spectral type m3 V) with mass and radius estimates of 0.20 ± 0.01M⊙ and 0.25 ± 0.01R⊙, respectively, and an effective temperature of 3381 ± 54 K. It was observed by TESS in four sectors. These data revealed a transit-like feature with a period of 1.949 days. …


A Hot Mini-Neptune In The Radius Valley Orbiting Solar Analogue Hd 110113, H. P. Osborn, D. J. Armstrong, V. Adibekyan, K. A. Collins, E. Delgado-Mena, S. B. Howell, C. Hellier, G. W. King, J. Lillo-Box, L. D. Nielsen, J. F. Otegi, N. C. Santos, C. Ziegler, D. R. Anderson, C. Briceño, C. Burke, D. Bayliss, D. Barrado, E. M. Bryant, D. J. A. Brown, S. C. C. Barros, F. Bouchy, D. A. Caldwell, D. M. Conti, R. F. Díaz, D. Dragomir, M. Deleuil, O. D. S. Demangeon, C. Dorn, T. Daylan, P. Figueira, R. Helled, S. Hoyer, J. M. Jenkins, Eric L.N. Jensen, D. W. Latham, N. Law, D. R. Louie, A. W. Mann, A. Osborn, D. L. Pollacco, D. R. Rodriguez, B. V. Rackham, G. Ricker, N. J. Scott, S. G. Sousa, S. Seager, K. G. Stassun, J. C. Smith, P. Strøm, S. Udry, J. Villaseñor, R. Vanderspek, R. West, P. J. Wheatley, J. N. Winn Apr 2021

A Hot Mini-Neptune In The Radius Valley Orbiting Solar Analogue Hd 110113, H. P. Osborn, D. J. Armstrong, V. Adibekyan, K. A. Collins, E. Delgado-Mena, S. B. Howell, C. Hellier, G. W. King, J. Lillo-Box, L. D. Nielsen, J. F. Otegi, N. C. Santos, C. Ziegler, D. R. Anderson, C. Briceño, C. Burke, D. Bayliss, D. Barrado, E. M. Bryant, D. J. A. Brown, S. C. C. Barros, F. Bouchy, D. A. Caldwell, D. M. Conti, R. F. Díaz, D. Dragomir, M. Deleuil, O. D. S. Demangeon, C. Dorn, T. Daylan, P. Figueira, R. Helled, S. Hoyer, J. M. Jenkins, Eric L.N. Jensen, D. W. Latham, N. Law, D. R. Louie, A. W. Mann, A. Osborn, D. L. Pollacco, D. R. Rodriguez, B. V. Rackham, G. Ricker, N. J. Scott, S. G. Sousa, S. Seager, K. G. Stassun, J. C. Smith, P. Strøm, S. Udry, J. Villaseñor, R. Vanderspek, R. West, P. J. Wheatley, J. N. Winn

Physics & Astronomy Faculty Works

We report the discovery of HD 110113 b (TESS object of interest-755.01), a transiting mini-Neptune exoplanet on a 2.5-d orbit around the solar-analogue HD 110113 (Teff = 5730 K). Using TESS photometry and High Accuracy Radial velocity Planet Searcher (HARPS) radial velocities gathered by the NCORES program, we find that HD 110113 b has a radius of 2.05 ± 0.12  R⊕ and a mass of 4.55 ± 0.62  M⊕. The resulting density of 2.90+0.75−0.59  g cm−3 is significantly lower than would be expected from a pure-rock world; therefore HD 110113 b must be a mini-Neptune with a significant volatile atmosphere. …