تقرير
TOI-481 b and TOI-892 b: Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite
| العنوان: | TOI-481 b and TOI-892 b: Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite |
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| المؤلفون: | Rafael Brahm, Louise D. Nielsen, Robert A. Wittenmyer, Songhu Wang, Joseph E. Rodriguez, Néstor Espinoza Perez, Matías I. Jones, Andrés Jordán, Thomas Henning, Melissa J. Hobson, Diana Kossakowski, Felipe Rojas, Paula Sarkis, Martin Schlecker, Trifon Trifonov, Sahar Shahaf, George R Ricker, Roland Vanderspek, David W. Latham, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Brett C. Addison, Gáspár Á. Bakos, Waqas Bhatti, Daniel Bayliss, Perry Berlind, Allyson Bieryla, Francois Bouchy, Brendan P. Bowler, César Briceño, Timothy M. Brown, Edward M. Bryant, Douglas A. Caldwell, David Charbonneau, Karen A. Collins, Allen B. Davis, Gilbert A. Esquerdo, Benjamin J. Fulton, Natalia M. Guerrero, Christopher E. Henze, Aleisha Hogan, Jonathan Horner, Chelsea X. Huang, Jonathan Irwin, Stephen R. Kane, John Kielkopf, Andrew W. Mann, Tsevi Mazeh, James McCormac, Curtis McCully, Matthew W. Mengel, Ismael Mireles, Jack Okumura, Peter Plavchan, Samuel N. Quinn, Markus Rabus, Sophie Saesen, Joshua E. Schlieder, Damien Segransan, Bernie Shiao, Avi Shporer, Robert J. Siverd, Keivan G. Stassun, Vincent Suc, Thiam-Guan Tan, Pascal Torres, Chris G. Tinney, Stephane Udry, Leonardo Vanzi, Michael Vezie, Jose I. Vines, Maja Vuckovic, Duncan J. Wright, Daniel Yahalomi, Abner Zapata, Hui Zhang, Carl Ziegler |
| المصدر: | The Astronomical Journal. 160(5) |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Astronomy, Astrophysics |
| الوصف: | 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 R(J) and 1.07 ± 0.02 R(J), respectively), and orbital periods (10.3311 days and 10.6266 days, respectively), but significantly different masses (1.53 ± 0.03 M(J) versus 0.95 ± 0.07 M(J), respectively). Both planets orbit metal-rich stars ([Fe/HG] = +0.26 ± 0.05 dex and [Fe/H] = +0.24 ± 0.05 for TOI-481 and TOI-892, respectively) but at different evolutionary stages. TOI-481 is a M(*) = 1.14 ± 0.02 Mꙩ, R(*) = 1.66 ± 0.02 Rꙩ G-type star (T(eff) = 5735 ± 72 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 (T(eff) = 6261 ± 80 K), which has a mass of M(*) = 1.28 ± 0.03 Mꙩ and a radius of R(*) = 1.39 ± 0.02 Rꙩ. 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. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| تدمد: | 1538-4357 0004-637X |
| DOI: | 10.3847/1538-3881/abba3b |
| URL الوصول: | https://ntrs.nasa.gov/citations/20210012866 |
| ملاحظات: | 985788 |
| رقم الأكسشن: | edsnas.20210012866 |
| قاعدة البيانات: | NASA Technical Reports |
| تدمد: | 15384357 0004637X |
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| DOI: | 10.3847/1538-3881/abba3b |