A Jovian planet in an eccentric 11.5 day orbit around HD 1397 discovered by TESS
Article
Article Title | A Jovian planet in an eccentric 11.5 day orbit around HD 1397 discovered by TESS |
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ERA Journal ID | 1050 |
Article Category | Article |
Authors | Nielsen, L. D. (Author), Bouchy, F. (Author), Turner, O. (Author), Giles, H. (Author), Suarez Mascareno, A. (Author), Lovis, C. (Author), Marmier, M. (Author), Pepe, F. (Author), Segransan, D. (Author), Udry, S. (Author), Otegi, J. F. (Author), Ottoni, G. (Author), Staport, M. (Author), Ricker, G. (Author), Vanderspek, R. (Author), Latham, D. W. (Author), Seager, S. (Author), Winn, J. N. (Author), Jenkins, J. M. (Author), Kane, S. R. (Author), Wittenmyer, R. A. (Author), Bowler, B. (Author), Crossfield, I. (Author), Horner, J. (Author), Kielkopf, J. (Author), Morton, T. (Author), Plavchan, P. (Author), Tinney, C. G. (Author), Zhang, Hui (Author), Wright, D. J. (Author), Mengel, M. W. (Author), Clark, J. T. (Author), Okumura, J. (Author), Addison, B. (Author), Caldwell, D. A. (Author), Cartwright, S. M. (Author), Collins, K. A. (Author), Francis, J. (Author), Guerrero, N. (Author), Huang, C. X. (Author), Matthews, E. C. (Author), Pepper, J. (Author), Rose, M. (Author), Villasenor, J. (Author), Wohler, B. (Author), Stassun, K. (Author), Howell, S. (Author), Ciardi, D. (Author), Gonzales, E. (Author), Matson, R. (Author), Beichman, C. (Author) and Schlieder, J. (Author) |
Journal Title | Astronomy and Astrophysics: a European journal |
Journal Citation | 623, pp. 1-8 |
Article Number | A100 |
Number of Pages | 8 |
Year | 2019 |
Publisher | EDP Sciences |
Place of Publication | France |
ISSN | 0004-6361 |
1432-0746 | |
Digital Object Identifier (DOI) | https://doi.org/10.1051/0004-6361/201834577 |
Web Address (URL) | https://www.aanda.org/articles/aa/abs/2019/03/aa34577-18/aa34577-18.html |
Abstract | The Transiting Exoplanet Survey Satellite TESS has begun a new age of exoplanet discoveries around bright host stars. We present the discovery of HD 1397b (TOI-120.01), a giant planet in an 11.54-day eccentric orbit around a bright (V = 7.9) G-type subgiant. We estimate both host star and planetary parameters consistently using EXOFASTv2 based on TESS time-series photometry of transits and radial velocity measurements with CORALIE and MINERVA-Australis. We also present high angular resolution imaging with NaCo to rule out any nearby eclipsing binaries. We find that HD 1397b is a Jovian planet, with a mass of 0.415 ± 0.020 MJ and a radius of 1.026 ± 0.026 RJ. Characterising giant planets in short-period eccentric orbits, such as HD 1397b, is important for understanding and testing theories for the formation and migration of giant planets as well as planet-star interactions. |
Keywords | planets and satellites, detection HD 1397b, TOI-120, 394137592 |
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. |
Byline Affiliations | University of Geneva, Switzerland |
Massachusetts Institute of Technology, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Princeton University, United States | |
National Aeronautics and Space Administration (NASA), United States | |
University of California, United States | |
Centre for Astrophysics | |
University of Texas at Austin, United States | |
University of Louisville, United States | |
University of Florida, United States | |
George Mason University, United States | |
University of New South Wales | |
Nanjing University, China | |
SETI Institute, United States | |
Proto-Logic Consulting, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Lehigh University, United States | |
NASA Ames Research Center, United States | |
Vanderbilt University, United States | |
NASA Goddard Space Flight Center, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q55v0/a-jovian-planet-in-an-eccentric-11-5-day-orbit-around-hd-1397-discovered-by-tess
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