2020AJ....160..235B

Query : 2020AJ....160..235B

2020AJ....160..235B - Astron. J., 160, 235-235 (2020/November-0)

TOI-481 b and TOI-892 b: two long-period hot Jupiters from the Transiting Exoplanet Survey Satellite.

BRAHM R., NIELSEN L.D., WITTENMYER R.A., WANG S., RODRIGUEZ J.E., ESPINOZA N., JONES M.I., JORDAN A., HENNING T., HOBSON M., KOSSAKOWSKI D., ROJAS F., SARKIS P., SCHLECKER M., TRIFONOV T., SHAHAF S., RICKER G., VANDERSPEK R., LATHAM D.W., SEAGER S., WINN J.N., JENKINS J.M., ADDISON B.C., BAKOS G.A., BHATTI W., BAYLISS D., BERLIND P., BIERYLA A., BOUCHY F., BOWLER B.P., BRICENO C., BROWN T.M., BRYANT E.M., CALDWELL D.A., CHARBONNEAU D., COLLINS K.A., DAVIS A.B., ESQUERDO G.A., FULTON B.J., GUERRERO N.M., HENZE C.E., HOGAN A., HORNER J., HUANG C.X., IRWIN J., KANE S.R., KIELKOPF J., MANN A.W., MAZEH T., McCORMAC J., McCULLY C., MENGEL M.W., MIRELES I., OKUMURA J., PLAVCHAN P., QUINN S.N., RABUS M., SAESEN S., SCHLIEDER J.E., SEGRANSAN D., SHIAO B., SHPORER A., SIVERD R.J., STASSUN K.G., SUC V., TAN T.-G., TORRES P., TINNEY C.G., UDRY S., VANZI L., VEZIE M., VINES J.I., VUCKOVIC M., WRIGHT D.J., YAHALOMI D.A., ZAPATA A., ZHANG H. and ZIEGLER C.

Abstract (from CDS):

We present the discovery of two new 10 day period giant planets from the Transiting Exoplanet Survey Satellite mission, whose masses were precisely determined using a wide diversity of ground-based facilities. TOI-481 b and TOI-892 b have similar radii (0.99 ± 0.01 RJ and 1.07 ± 0.02 RJ, respectively), and orbital periods (10.3311 days and 10.6266 days, respectively), but significantly different masses (1.53 ± 0.03 MJ versus 0.95 ± 0.07 MJ, respectively). Both planets orbit metal-rich stars ([Fe/H] = +0.26±0.05 dex and [Fe/H] = +0.24±0.05 for TOI-481 and TOI-892, respectively) but at different evolutionary stages. TOI-481 is a M* = 1.14 ± 0.02 M☉, R* = 1.66 ± 0.02 R☉ G-type star (Teff = 5735±72 K), that with an age of 6.7 Gyr, is in the turn-off point of the main sequence. TOI-892 on the other hand, is a F-type dwarf star (Teff = 6261±80 K), which has a mass of M* = 1.28 ± 0.03 M☉ and a radius of R* = 1.39 ± 0.02 R☉. TOI-481 b and TOI-892 b join the scarcely populated region of transiting gas giants with orbital periods longer than 10 days, which is important to constrain theories of the formation and structure of hot Jupiters.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

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

VizieR on-line data: <Available at CDS (J/AJ/160/235): table1.dat table2.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 TOI-892b Pl 05 46 57.1750247928 -11 14 07.317522996           ~ 11 0
2 TOI-892 * 05 46 57.1750247928 -11 14 07.317522996   12.072 11.466 11.415   ~ 13 0
3 CD-57 1712b Pl 07 22 02.9952922776 -57 23 05.600400108           ~ 14 0
4 CD-57 1712 * 07 22 02.9952922776 -57 23 05.600400108   10.75 9.97     ~ 19 0
5 WASP-185b Pl 14 16 14.3136816768 -19 32 32.208659952           ~ 7 0
6 WASP-134b Pl 21 50 16.7753138664 +04 11 40.419553344           ~ 5 0

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