A transiting warm giant planet around the young active star TOI-201
Article
Article Title | A transiting warm giant planet around the young active star TOI-201 |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Hobson, Melissa J. (Author), Brahm, Rafael (Author), Jordan, Andres (Author), Espinoza, Nestor (Author), Kossakowski, Diana (Author), Henning, Thomas (Author), Rojas, Felipe (Author), Schlecker, Martin (Author), Sarkis, Paula (Author), Trifonov, Trifon (Author), Thorngren, Daniel (Author), Binnenfeld, Avraham (Author), Shahaf, Sahar (Author), Zucker, Shay (Author), Ricker, George R. (Author), Latham, David W. (Author), Seager, S. (Author), Winn, Joshua N. (Author), Jenkins, Jon M. (Author), Addison, Brett (Author), Bouchy, Francois (Author), Bowler, Brendan P. (Author), Briegal, Joshua T. (Author), Bryant, Edward M. (Author), Collins, Karen A. (Author), Daylan, Tansu (Author), Grieves, Nolan (Author), Horner, Jonathan (Author), Huang, Chelsea (Author), Kane, Stephen R. (Author), Kielkopf, John (Author), McLean, Brian (Author), Mengel, Matthew W. (Author), Nielsen, Louise D. (Author), Okumura, Jack (Author), Jones, Matias (Author), Plavchan, Peter (Author), Shporer, Avi (Author), Smith, Alexis M. S. (Author), Tilbrook, Rosanna (Author), Tinney, C. G. (Author), Twicken, Joseph D. (Author), Udry, Stephane (Author), Unger, Nicolas (Author), West, Richard (Author), Wittenmyer, Robert A. (Author), Wohler, Bill (Author), Torres, Pascal (Author) and Wright, Duncan J. (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 161 (5) |
Article Number | 235 |
Number of Pages | 16 |
Year | 2021 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/abeaa1 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/abeaa1 |
Abstract | We present the confirmation of the eccentric warm giant planet TOI-201 b, first identified as a candidate in Transiting Exoplanet Survey Satellite photometry (Sectors 1-8, 10-13, and 27-28) and confirmed using ground-based photometry from Next Generation Transit Survey and radial velocities from FEROS, HARPS, CORALIE, and Minerva-Australis. TOI-201 b orbits a young (0.87-0.49+0.46, Gyr) and bright (V = 9.07 mag) F-type star with a 52.9781 day period. The planet has a mass of 0.42-0.03+0.05, MJ, a radius of 1.008-0.015+0.012, RJ, and an orbital eccentricity of 0.28-0.09+0.06; it appears to still be undergoing fairly rapid cooling, as expected given the youth of the host star. The star also shows long-term variability in both the radial velocities and several activity indicators, which we attribute to stellar activity. The discovery and characterization of warm giant planets such as TOI-201 b are important for constraining formation and evolution theories for giant planets. |
Keywords | exoplanet astronomy; exoplanet detection methods; transit photometry; radial velocity; 486; 489; 1709; 1332; astrophysics; Earth; planetary astrophysics |
Contains Sensitive Content | Does not contain sensitive content |
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 | Pontifical Catholic University of Chile, Chile |
Millennium Institute of Astrophysics, Chile | |
Space Telescope Science Institute, United States | |
Max Planck Society, Germany | |
University of Montreal, Canada | |
Tel Aviv University, Israel | |
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 | |
Centre for Astrophysics | |
University of Geneva, Switzerland | |
University of Texas at Austin, United States | |
University of Cambridge, United Kingdom | |
University of Warwick, United Kingdom | |
University of California, United States | |
School of Mathematics, Physics and Computing | |
European Southern Observatory (ESO), Chile | |
George Mason University, United States | |
German Aerospace Centre, Germany | |
University of Leicester, United Kingdom | |
University of New South Wales | |
NASA Ames Research Center, United States |
https://research.usq.edu.au/item/q67vx/a-transiting-warm-giant-planet-around-the-young-active-star-toi-201
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