TOI-481 b and TOI-892 b: Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite
Article
Article Title | TOI-481 b and TOI-892 b: Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Brahm, Rafael (Author), Nielsen, Louise D. (Author), Wittenmyer, Robert A. (Author), Wang, Songhu (Author), Rodriguez, Joseph E. (Author), Espinoza, Nestor (Author), Jones, Matias I. (Author), Jordan, Andres (Author), Henning, Thomas (Author), Hobson, Melissa (Author), Kossakowski, Diana (Author), Rojas, Felipe (Author), Sarkis, Paula (Author), Schlecker, Martin (Author), Trifonov, Trifon (Author), Shahaf, Sahar (Author), Ricker, George (Author), Vanderspek, Roland (Author), Latham, David W. (Author), Seager, Sara (Author), Winn, Joshua N. (Author), Jenkins, Jon M. (Author), Addison, Brett C. (Author), Bakos, Gaspar A. (Author), Bhatti, Waqas (Author), Bayliss, Daniel (Author), Berlind, Perry (Author), Bieryla, Allyson (Author), Bouchy, Francois (Author), Bowler, Brendan P. (Author), Briceno, Cesar (Author), Brown, Timothy M. (Author), Bryant, Edward M. (Author), Caldwell, Douglas A. (Author), Charbonneau, David (Author), Collins, Karen A. (Author), Davis, Allen B. (Author), Esquerdo, Gilbert A. (Author), Fulton, Benjamin J. (Author), Guerrero, Natalia M. (Author), Henze, Christopher E. (Author), Hogan, Aleisha (Author), Horner, Jonathan (Author), Huang, Chelsea X. (Author), Irwin, Jonathan (Author), Kane, Stephen R. (Author), Kielkopf, John (Author), Mann, Andrew W. (Author), Mazeh, Tsevi (Author), McCormac, James (Author), McCully, Curtis (Author), Mengel, Matthew W. (Author), Mireles, Ismael (Author), Okumura, Jack (Author), Plavchan, Peter (Author), Quinn, Samuel N. (Author), Rabus, Markus (Author), Saesen, Sophie (Author), Schlieder, Joshua E. (Author), Segransan, Damien (Author), Shiao, Bernie (Author), Shporer, Avi (Author), Siverd, Robert J. (Author), Stassun, Keivan G. (Author), Suc, Vincent (Author), Tan, Thiam-Guan (Author), Torres, Pascal (Author), Tinney, Chris G. (Author), Udry, Stephane (Author), Vanzi, Leonardo (Author), Vezie, Michael (Author), Vines, Jose I. (Author), Vuckovic, Maja (Author), Wright, Duncan J. (Author), Yahalomi, Daniel A. (Author), Zapata, Abner (Author), Zhang, Hui (Author) and Ziegler, Carl (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 160 (5), pp. 1-14 |
Article Number | 235 |
Number of Pages | 14 |
Year | 2020 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/abba3b |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/abba3b |
Abstract | We present the discovery of two new 10 day period giant planets from the Transiting Exoplanet Survey Satellite mission, whose masses were precisely determined using a wide diversity of ground-based facilities. TOI-481 b and TOI-892 b have similar radii (0.99 0.01 and 1.07 0.02, respectively), and orbital periods (10.3311 days and 10.6266 days, respectively), but significantly different masses (1.53 0.03, respectively). Both planets orbit metal-rich stars ( = dex and = for TOI-481 and TOI-892, respectively) but at different evolutionary stages. TOI-481 is a = 1.14 0.02 = 1.66 0.02 G-type star (=K), that with an age of 6.7 Gyr, is in the turn-off point of the main sequence. TOI-892 on the other hand, is a F-type dwarf star (=K), which has a mass of = 1.28 0.03 and a radius of = 1.39 0.02. TOI-481 b and TOI-892 b join the scarcely populated region of transiting gas giants with orbital periods longer than 10 days, which is important to constrain theories of the formation and structure of hot Jupiters. |
Keywords | Exoplanet detection methods; Transit photometry; Radial velocity; Exoplanet astronomy; 489; 1709; 1332; 486; Astrophysics - Earth and; Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | Millennium Institute of Astrophysics, Chile |
University of Geneva, Switzerland | |
Centre for Astrophysics | |
Yale University, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Space Telescope Science Institute, United States | |
European Southern Observatory (ESO), Chile | |
Adolfo Ibanez University, Chile | |
Max Planck Society, Germany | |
Pontifical Catholic University of Chile, Chile | |
Tel Aviv University, Israel | |
Massachusetts Institute of Technology, United States | |
Princeton University, United States | |
NASA Ames Research Center, United States | |
University of Warwick, United Kingdom | |
University of Texas at Austin, United States | |
Cerro Tololo Inter-American Observatory, Chile | |
University of Colorado Boulder, United States | |
SETI Institute, United States | |
National Aeronautics and Space Administration (NASA), United States | |
University of Leicester, United Kingdom | |
University of California, United States | |
School of Mathematics, Physics and Computing | |
University of North Carolina, United States | |
George Mason University, United States | |
Las Cumbres Observatory, United States | |
NASA Goddard Space Flight Center, United States | |
Gemini Observatory, United States | |
Vanderbilt University, United States | |
Perth Exoplanet Survey Telescope Observatory, Australia | |
University of New South Wales | |
University of Chile, Chile | |
University of Valparaiso, Chile | |
Nanjing University, China | |
University of Toronto, Canada |
https://research.usq.edu.au/item/q6134/toi-481-b-and-toi-892-b-two-long-period-hot-jupiters-from-the-transiting-exoplanet-survey-satellite
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