2021AJ....161..235H

Query : 2021AJ....161..235H

2021AJ....161..235H - Astron. J., 161, 235-235 (2021/May-0)

A Transiting warm giant planet around the young active star TOI-201.

HOBSON M.J., BRAHM R., JORDAN A., ESPINOZA N., KOSSAKOWSKI D., HENNING T., ROJAS F., SCHLECKER M., SARKIS P., TRIFONOV T., THORNGREN D., BINNENFELD A., SHAHAF S., ZUCKER S., RICKER G.R., LATHAM D.W., SEAGER S., WINN J.N., JENKINS J.M., ADDISON B., BOUCHY F., BOWLER B.P., BRIEGAL J.T., BRYANT E.M., COLLINS K.A., DAYLAN T., GRIEVES N., HORNER J., HUANG C., KANE S.R., KIELKOPF J., McLEAN B., MENGEL M.W., NIELSEN L.D., OKUMURA J., JONES M., PLAVCHAN P., SHPORER A., SMITH A.M.S., TILBROOK R., TINNEY C.G., TWICKEN J.D., UDRY S., UNGER N., WEST R., WITTENMYER R.A., WOHLER B., TORRES P. and WRIGHT D.J.

Abstract (from CDS):

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+0.46Gyr) 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+0.05MJ, a radius of 1.008–0.015+0.012RJ, 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.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Exoplanet astronomy - Exoplanet detection methods - Transit photometry - Radial velocity

VizieR on-line data: <Available at CDS (J/AJ/161/235): tablea1.dat tablea2.dat tablea3.dat tablea4.dat>

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 39474 PM* 05 49 36.4133735952 -54 54 38.555451540   10.104 9.715     F7V 45 0
2 HD 39474b Pl 05 49 36.4133735952 -54 54 38.555451540           ~ 19 0
3 TOI-201.02 Pl? 05 49 36.4133735952 -54 54 38.555451540           ~ 6 0
4 Kepler-30c Pl 19 01 08.0746104528 +38 56 50.218268856           ~ 78 1
5 Kepler-117 Er* 19 15 10.3301577216 +48 02 24.785162160   15.056 14.476 14.266 13.69 F2 94 1
6 Kepler-117c Pl 19 15 10.3301577216 +48 02 24.785162160           ~ 60 0

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