Three short-period Jupiters from TESS: HIP 65Ab, TOI-157b, and TOI-169b
Article
Article Title | Three short-period Jupiters from TESS: HIP 65Ab, TOI-157b, and TOI-169b |
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ERA Journal ID | 1050 |
Article Category | Article |
Authors | Nielsen, L. D. (Author), Brahm, R. (Author), Bouchy, F. (Author), Espinoza, N. (Author), Turner, O. (Author), Rappaport, S. (Author), Pearce, L. (Author), Ricker, G. (Author), Vanderspek, R. (Author), Latham, D. W. (Author), Seager, S. (Author), Winn, J. N. (Author), Jenkins, J. M. (Author), Acton, J. S. (Author), Bakos, G. (Author), Barclay, T. (Author), Barkaoui, K. (Author), Bhatti, W. (Author), Briceno, C. (Author), Bryant, E. M. (Author), Burleigh, M. R. (Author), Ciardi, D. R. (Author), Collins, K. A. (Author), Collins, K. I. (Author), Cooke, B. F. (Author), Csubry, Z. (Author), dos Santos, L. A. (Author), Eigmuller, Ph. (Author), Fausnaugh, M. M. (Author), Gan, T. (Author), Gillon, M. (Author), Goad, M. R. (Author), Guerrero, N. (Author), Hagelberg, J. (Author), Hart, R. (Author), Henning, T. (Author), Huang, C. X. (Author), Jehin, E. (Author), Jenkins, J. S. (Author), Jordan, A. (Author), Kielkopf, J. F. (Author), Kossakowski, D. (Author), Lavie, B. (Author), Law, N. (Author), Lendl, M. (Author), de Leon, J. P. (Author), Lovis, C. (Author), Mann, A. W. (Author), Marmier, M. (Author), McCormac, J. (Author), Mori, M. (Author), Moyano, M. (Author), Narita, N. (Author), Osip, D. (Author), Otegi, J. F. (Author), Pepe, F. (Author), Pozuelos, F. J. (Author), Raynard, L. (Author), Relles, H. M. (Author), Sarkis, P. (Author), Segransan, D. (Author), Seidel, J. V. (Author), Shporer, A. (Author), Stalport, M. (Author), Stockdale, C. (Author), Suc, V. (Author), Tamura, M. (Author), Tan, T. G. (Author), Tilbrook, R. H. (Author), Ting, E. B. (Author), Trifonov, T. (Author), Udry, S. (Author), Vanderburg, A. (Author), Wheatley, P. J. (Author), Wingham, G. (Author), Zhan, Z. (Author) and Ziegler, C. (Author) |
Journal Title | Astronomy and Astrophysics: a European journal |
Journal Citation | 639, pp. 1-17 |
Article Number | A76 |
Number of Pages | 17 |
Year | 2020 |
Publisher | EDP Sciences |
Place of Publication | France |
ISSN | 0004-6361 |
1432-0746 | |
Digital Object Identifier (DOI) | https://doi.org/10.1051/0004-6361/202037941 |
Web Address (URL) | https://www.aanda.org/articles/aa/full_html/2020/07/aa37941-20/aa37941-20.html |
Abstract | We report the confirmation and mass determination of three hot Jupiters discovered by the Transiting Exoplanet Survey Satellite (TESS) mission: HIP 65Ab (TOI-129, TIC-201248411) is an ultra-short-period Jupiter orbiting a bright (V = 11.1 mag) K4-dwarf every 0.98 days. It is a massive 3.213 ± 0.078 MJ planet in a grazing transit configuration with an impact parameter of b = 1.17-0.08+0.10. As a result the radius is poorly constrained, 2.03-0.49+0.61RJ. The planet's distance to its host star is less than twice the separation at which it would be destroyed by Roche lobe overflow. It is expected to spiral into HIP 65A on a timescale ranging from 80 Myr to a few gigayears, assuming a reduced tidal dissipation quality factor of Qs′ = 107 - 109. We performed a full phase-curve analysis of the TESS data and detected both illumination- and ellipsoidal variations as well as Doppler boosting. HIP 65A is part of a binary stellar system, with HIP 65B separated by 269 AU (3.95 arcsec on sky). TOI-157b (TIC 140691463) is a typical hot Jupiter with a mass of 1.18 ± 0.13 MJ and a radius of 1.29 ± 0.02 RJ. It has a period of 2.08 days, which corresponds to a separation of just 0.03 AU. This makes TOI-157 an interesting system, as the host star is an evolved G9 sub-giant star (V = 12.7). TOI-169b (TIC 183120439) is a bloated Jupiter orbiting a V = 12.4 G-type star. It has a mass of 0.79 ±0.06 MJ and a radius of 1.09-0.05+0.08RJ. Despite having the longest orbital period (P = 2.26 days) of the three planets, TOI-169b receives the most irradiation and is situated on the edge of the Neptune desert. All three host stars are metal rich with [Fe / H] ranging from 0.18 to0.24. |
Keywords | Planets and satellites: detection; Planets and satellites: individual: HIP 65A; Planets and satellites: individual: TOI-129; Planets and satellites: individual: TOI-157; 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 | University of Geneva, Switzerland |
Adolfo Ibanez University, Chile | |
Space Telescope Science Institute, United States | |
Massachusetts Institute of Technology, United States | |
University of Arizona, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Princeton University, United States | |
NASA Ames Research Center, United States | |
University of Leicester, United Kingdom | |
NASA Goddard Space Flight Center, United States | |
University of Liege, Belgium | |
Cerro Tololo Inter-American Observatory, Chile | |
University of Warwick, United Kingdom | |
National Aeronautics and Space Administration (NASA), United States | |
George Mason University, United States | |
German Aerospace Centre, Germany | |
Tsinghua University, China | |
Centre for Astrophysics | |
Max Planck Society, Germany | |
University of Chile, Chile | |
School of Mathematics, Physics and Computing | |
University of North Carolina, United States | |
University of Tokyo, Japan | |
Catholic University of the North, Chile | |
Astrobiology Center, Japan | |
Carnegie Institution of Washington, United States | |
Hazelwood Observatory, Australia | |
Perth Exoplanet Survey Telescope Observatory, Australia | |
University of Texas at Austin, United States | |
Mt. Stuart Observatory, New Zealand | |
University of Toronto, Canada |
https://research.usq.edu.au/item/q7246/three-short-period-jupiters-from-tess-hip-65ab-toi-157b-and-toi-169b
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