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Author
Eberhardt, J.Hobson, M.J.
Henning, T.
Trifonov, T.
Brahm, R.
Espinoza, N.
Jordán, A.
Thorngren, D.
Burn, R.
Rojas, F.I.
Sarkis, P.
Schlecker, M.
Pinto, M.T.
Barkaoui, K.
Schwarz, R.P.
Suarez, O.
Guillot, T.
Triaud, A.H.M.J.
Günther, M.N.
Abe, L.
Boyle, G.
Leiva, R.
Suc, V.
Evans, P.
Dunckel, N.
Ziegler, C.
Falk, B.
Fong, W.

Rudat, A.
Shporer, A.
Striegel, S.
Watanabe, D.
Jenkins, J.M.
Seager, S.
Winn, J.N.
Affiliation
Department of Astronomy, Steward Observatory, The University of ArizonaIssue Date
2023-11-29
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American Astronomical SocietyCitation
Jan Eberhardt et al 2023 AJ 166 271Journal
Astronomical JournalRights
© 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
We report the discovery and characterization of three giant exoplanets orbiting solar-analog stars, detected by the TESS space mission and confirmed through ground-based photometry and radial velocity measurements taken at La Silla observatory with FEROS. TOI-2373 b is a warm Jupiter orbiting its host star every ∼13.3 days, and is one of the most massive known exoplanet with a precisely determined mass and radius around a star similar to the Sun, with an estimated mass of m p = 9.3 − 0.2 + 0.2 M jup and a radius of r p = 0.93 − 0.2 + 0.2 R jup . With a mean density of ρ = 14.4 − 1.0 + 0.9 g cm − 3 , TOI-2373 b is among the densest planets discovered so far. TOI-2416 b orbits its host star on a moderately eccentric orbit with a period of ∼8.3 days and an eccentricity of e = 0.32 − 0.02 + 0.02 . TOI-2416 b is more massive than Jupiter with m p = 3.0 − 0.09 + 0.10 M jup , however is significantly smaller with a radius of r p = 0.88 − 0.02 + 0.02 , R jup , leading to a high mean density of ρ = 5.4 − 0.3 + 0.3 g cm − 3 . TOI-2524 b is a warm Jupiter near the hot Jupiter transition region, orbiting its star every ∼7.2 days on a circular orbit. It is less massive than Jupiter with a mass of m p = 0.64 − 0.04 + 0.04 M jup , and is consistent with an inflated radius of r p = 1.00 − 0.03 + 0.02 R jup , leading to a low mean density of ρ = 0.79 − 0.08 + 0.08 g cm − 3 . The newly discovered exoplanets TOI-2373 b, TOI-2416 b, and TOI-2524 b have estimated equilibrium temperatures of 860 − 10 + 10 K, 1080 − 10 + 10 K, and 1100 − 20 + 20 K, respectively, placing them in the sparsely populated transition zone between hot and warm Jupiters. © 2023. The Author(s). Published by the American Astronomical Society.Note
Open access journalISSN
0004-6256Version
Final Published Versionae974a485f413a2113503eed53cd6c53
10.3847/1538-3881/ad06bc
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Except where otherwise noted, this item's license is described as © 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.