Journal
ASTRONOMICAL JOURNAL
Volume 161, Issue 4, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/1538-3881/abe38a
Keywords
Exoplanet astronomy; Exoplanet migration; Exoplanet detection methods; Exoplanets; Transits; Radial velocity; Direct imaging
Categories
Funding
- Dunlap Fellowship at the Dunlap Institute for Astronomy Astrophysics
- European Research Council under the Horizon 2020 Framework Program via the ERC Advanced Grant [83 24 28]
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program [724427]
- NSF [1952545]
- FONDECYT Project [11200751]
- CORFO project [14ENI2-26865]
- Millennium Science Initiative, Chilean Ministry of Economy [IC120009]
- Eberly Research Fellowship from The Pennsylvania State University Eberly College of Science
- Pennsylvania State University
- Eberly College of Science
- Pennsylvania Space Grant Consortium
- New York Community Trust's Fund for Astrophysical Research
- NASA Massachusetts Space Grant Fellowships
- Deutsche Forschungsgemeinschaft (DFG) [HA 3279/12-1, SPP1992]
- Thomas Jefferson Chair for Space Exploration at the Ohio State University
- Hellman Fellows Fund
- NASA XRP [80NSSC20K0250]
- NASA's Science Mission directorate
- Gemini program [GN-2018B-LP-101]
- W. M. Keck Foundation
- 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
- University of Texas at Austin
- Office Of Internatl Science &Engineering
- Office Of The Director [1952545] Funding Source: National Science Foundation
- Australian Research Council [LE160100001] Funding Source: Australian Research Council
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We present the discovery and characterization of five hot and warm Jupiters based on data from NASA's TESS. These Jovian-sized planets range in mass and orbit subgiant host stars with F and G spectral types. The TESS mission continues to expand the sample of well-characterized hot and warm Jupiters, enhancing its primary mission goals.
We present the discovery and characterization of five hot and warm Jupiters-TOI-628 b (TIC 281408474; HD 288842), TOI-640 b (TIC 147977348), TOI-1333 b (TIC 395171208, BD+47 3521A), TOI-1478 b (TIC 409794137), and TOI-1601 b ( TIC 139375960)-based on data from NASA's Transiting Exoplanet Survey Satellite (TESS). The five planets were identified from the full-frame images and were confirmed through a series of photometric and spectroscopic follow-up observations by the TESS Follow-up Observing Program Working Group. The planets are all Jovian size (R-P = 1.01-1.77 R-J) and have masses that range from 0.85 to 6.33 M-J. The host stars of these systems have F and G spectral types (5595 <= T-eff <= 6460 K) and are all relatively bright (9.5 < V < 10.8, 8.2 < K < 9.3), making them well suited for future detailed characterization efforts. Three of the systems in our sample (TOI-640 b, TOI-1333 b, and TOI-1601 b) orbit subgiant host stars (log g < 4.1). TOI-640 b is one of only three known hot Jupiters to have a highly inflated radius (R-P > 1.7 R-J, possibly a result of its host star's evolution) and resides on an orbit with a period longer than 5 days. TOI-628 b is the most massive, hot Jupiter discovered to date by TESS with a measured mass of 6.31(-0.30)(+) (0.28) M-J and a statistically significant, nonzero orbital eccentricity of e = 0.074(-0.022)(+) (0.021). This planet would not have had enough time to circularize through tidal forces from our analysis, suggesting that it might be remnant eccentricity from its migration. The longest-period planet in this sample, TOI-1478 b (P = 10.18 days), is a warm Jupiter in a circular orbit around a near-solar analog. NASA's TESS mission is continuing to increase the sample of well-characterized hot and warm Jupiters, complementing its primary mission goals.
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