期刊
ASTRONOMICAL JOURNAL
卷 161, 期 5, 页码 -出版社
IOP Publishing Ltd
DOI: 10.3847/1538-3881/abeaa1
关键词
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资金
- NASA's Science Mission directorate
- ANID-Millennium Science Initiative [ICN12_009]
- FONDECYT [1171208]
- European Research Council under the Horizon 2020 Framework Program via the ERC Advanced Grant [83 24 28]
- MIT's Kavli Institute
- ISRAEL SCIENCE FOUNDATION [848/16]
- Ministry of Science, Technology and Space, Israel
- Swiss National Science Foundation (SNSF)
- Australian Research Council [LE160100001, DP180100972]
- Mount Cuba Astronomical Foundation
- University of Southern Queensland
- UNSW Sydney
- MIT
- Nanjing University
- George Mason University
- University of Louisville
- University of California Riverside
- University of Florida
- The University of Texas at Austin
- Australian Research Council [LE160100001] Funding Source: Australian Research Council
TOI-201 b is an eccentric warm giant planet orbiting a young, bright F-type star, which is important for constraining formation and evolution theories for giant planets.
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 groundbased 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)) 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) M-J, a radius of 1.008(-0.015)(+0.012) R-J, 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.
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