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Author Eberhardt, J.; Hobson, M.J.; Henning, T.; Trifonov, T.; Brahm, R.; Espinoza, N.; Jordan, 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.
Title Three Warm Jupiters around Solar-analog Stars Detected with TESS Type
Year 2023 Publication Astronomical Journal Abbreviated Journal Astron. J.
Volume 166 Issue 6 Pages 271
Keywords MEAN-MOTION RESONANCE; GIANT PLANET; HOT JUPITERS; TRANSITING EXO; PLANETS; ERROR-CORRECTIONI-ARCHITECTURE; MASS; METALLICITY; CANDIDATES; EVOLUTION
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 similar to 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)Mjup and a radius of r(p) = 0.93(-0.2)(+0.2) jup. With a mean density of r = 14.4 1.0 g cm + 0.9 -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 similar to 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 M 0.10 jup, however is significantly smaller with a radius of r(p) = 0.88 + 0.02 ,R 0.02 jup, leading to a high mean density of r = 5.4 0.3 g cm + 0.3 -3. TOI-2524 b is a warm Jupiter near the hot Jupiter transition region, orbiting its star every similar to 7.2 days on a circular orbit. It is less massive than Jupiter with a mass of m(p)=0.64- + 0.04 M 0.04 jup, and is consistent with an inflated radius of r(p)= 1.00- + 0.03 R 0.02 jup, leading to a low mean density of r = 0.79 0.08 g cm + 0.08 -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.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0004-6256 ISBN Medium
Area Expedition Conference
Notes WOS:001112004200001 Approved
Call Number UAI @ alexi.delcanto @ Serial 1952
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Author Hobson, M.J.; Trifonov, T.; Henning, T.; Jordan, A.; Rojas, F.; Espinoza, N.; Brahm, R.; Eberhardt, J.; Jones, M.I.; Mekarnia, D.; Kossakowski, D.; Schlecker, M.; Pinto, M.T.; Miranda, P.J.T.; Abe, L.; Barkaoui, K.; Bendjoya, P.; Bouchy, F.; Buttu, M.; Carleo, I.; Collins, K.A.; Colon, K.D.; Crouzet, N.; Dragomir, D.; Dransfield, G.; Gasparetto, T.; Goeke, R.F.; Guillot, T.; Guenther, M.N.; Howard, S.; Jenkins, J.M.; Korth, J.; Latham, D.W.; Lendl, M.; Lissauer, J.J.; Mann, C.R.; Mireles, I.; Ricker, G.R.; Saesen, S.; Schwarz, R.P.; Seager, S.; Sefako, R.; Shporer, A.; Stockdale, C.; Suarez, O.; Tan, T.G.; Triaud, A.H.M.J.; Ulmer-Moll, S.; Vanderspek, R.; Winn, J.N.; Wohler, B.; Zhou, G.R.
Title Alert Results TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica 41 of 41 TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica Type
Year 2023 Publication Astronomical Journal Abbreviated Journal Astron. J.
Volume 166 Issue 5 Pages 201
Keywords MAGNETIC ACTIVITY; ERROR-CORRECTION; EXOPLANET YIELD; I-ARCHITECTURE; ASTEP 400; MODEL; TELESCOPE; SYSTEMS; JUPITER; CODE
Abstract We present the spectroscopic confirmation and precise mass measurement of the warm giant planet TOI-199 b. This planet was first identified in TESS photometry and confirmed using ground-based photometry from ASTEP in Antarctica including a full 6.5 hr long transit, PEST, Hazelwood, and LCO; space photometry from NEOSSat; and radial velocities (RVs) from FEROS, HARPS, CORALIE, and CHIRON. Orbiting a late G-type star, TOI-199 b has a 104.854-0.002+0.001day period, a mass of 0.17 +/- 0.02 M J, and a radius of 0.810 +/- 0.005 R J. It is the first warm exo-Saturn with a precisely determined mass and radius. The TESS and ASTEP transits show strong transit timing variations (TTVs), pointing to the existence of a second planet in the system. The joint analysis of the RVs and TTVs provides a unique solution for the nontransiting companion TOI-199 c, which has a period of 273.69-0.22+0.26days and an estimated mass of 0.28-0.01+0.02MJ . This period places it within the conservative habitable zone.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0004-6256 ISBN Medium
Area Expedition Conference
Notes WOS:001098090800001 Approved
Call Number UAI @ alexi.delcanto @ Serial 1933
Permanent link to this record