2019A&A...625A..16J

Query : 2019A&A...625A..16J

2019A&A...625A..16J - Astronomy and Astrophysics, volume 625A16-16 (2019/5-1)

HD 2685 b: a hot Jupiter orbiting an early F-type star detected by TESS.

JONES M.I., BRAHM R., ESPINOZA N., WANG S., SHPORER A., HENNING T., JORDAN A., SARKIS P., PAREDES L.A., HODARI-SADIKI J., HENRY T., CRUZ B., NIELSEN L.D., BOUCHY F., PEPE F., SEGRANSAN D., TURNER O., UDRY S., MARMIER M., LOVIS C., BAKOS G., OSIP D., SUC V., ZIEGLER C., TOKOVININ A., LAW N.M., MANN A.W., RELLES H., COLLINS K.A., BAYLISS D., SEDAGHATI E., LATHAM D.W., SEAGER S., WINN J.N., JENKINS J.M., SMITH J.C., DAVIES M., TENENBAUM P., DITTMANN J., VANDERBURG A., CHRISTIANSEN J.L., HAWORTH K., DOTY J., FURESZ G., LAUGHLIN G., MATTHEWS E., CROSSFIELD I., HOWELL S., CIARDI D., GONZALES E., MATSON R., BEICHMAN C. and SCHLIEDER J.

Abstract (from CDS):

We report on the confirmation of a transiting giant planet around the relatively hot (Teff=6801±76K) star HD 2685, whose transit signal was detected in Sector 1 data of NASA's TESS mission. We confirmed the planetary nature of the transit signal using Doppler velocimetric measurements with CHIRON, CORALIE, and FEROS, as well as using photometric data obtained with the Chilean-Hungarian Automated Telescope and the Las Cumbres Observatory. From the joint analysis of photometry and radial velocities, we derived the following parameters for HD 2685 b: P=4.12688–0.00004+0.00005days, e=0.091–0.047+0.039, MP=1.17±0.12MJ, and RP=.44±0.05RJ. This system is a typical example of an inflated transiting hot Jupiter in a low-eccentricity orbit. Based on the apparent visual magnitude (V=9.6mag) of the host star, this is one of the brightest known stars hosting a transiting hot Jupiter, and it is a good example of the upcoming systems that will be detected by TESS during the two-year primary mission. This is also an excellent target for future ground- and space-based atmospheric characterization as well as a good candidate for measuring the projected spin-orbit misalignment angle through the Rossiter-McLaughlin effect.

Abstract Copyright: © ESO 2019

Journal keyword(s): techniques: radial velocities - planets and satellites: detection - instrumentation: spectrographs - planetary systems - methods: observational

VizieR on-line data: <Available at CDS (J/A+A/625/A16): table2.dat>

Simbad objects: 4

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Number of rows : 4
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 2685 * 00 29 18.9525583296 -76 18 14.621613984   10.05 9.59     F2III/IV 25 0
2 HD 2685b Pl 00 29 18.9525583296 -76 18 14.621613984           ~ 19 0
3 HD 202772Ab Pl 21 18 47.8741665264 -26 36 58.053779532           ~ 28 0
4 * 51 Peg b Pl 22 57 27.9804852576 +20 46 07.797040104           ~ 744 1

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