2020AJ....159..243P

Query : 2020AJ....159..243P

2020AJ....159..243P - Astron. J., 159, 243-243 (2020/June-0)

TESS reveals HD 118203 b to be a transiting planet.

PEPPER J., KANE S.R., RODRIGUEZ J.E., HINKEL N.R., EASTMAN J.D., DAYLAN T., MOCNIK T., DALBA P.A., GAUDI B.S., FETHEROLF T., STASSUN K.G., CAMPANTE T.L., VANDERBURG A., HUBER D., BOSSINI D., CROSSFIELD I., HOWELL S.B., STEPHENS A.W., FURLAN E., RICKER G.R., VANDERSPEK R., LATHAM D.W., SEAGER S., WINN J.N., JENKINS J.M., TWICKEN J.D., ROSE M., SMITH J.C., GLIDDEN A., LEVINE A.M., RINEHART S., COLLINS K.A., MANN A.W., BURT J.A., JAMES D.J., SIVERD R.J. and GUNTHER M.N.

Abstract (from CDS):

The exoplanet HD 118203 b, orbiting a bright (V = 8.05) host star, was discovered using the radial velocity method by da Silva et al., but was not previously known to transit. Transiting Exoplanet Survey Satellite (TESS) photometry has revealed that this planet transits its host star. Nine planetary transits were observed by TESS, allowing us to measure the radius of the planet to be 1.136–0.028+0.029RJ, and to calculate the planet mass to be 2.166–0.079+0.074MJ. The host star is slightly evolved with an effective temperature of Teff=5683–85+84 K and a surface gravity of logg=3.8890.0180.017. With an orbital period of 6.134985–0.000030+0.000029 days and an eccentricity of 0.314 ± 0.017, the planet occupies a transitional regime between circularized hot Jupiters and more dynamically active planets at longer orbital periods. The host star is among the 10 brightest known to have transiting giant planets, providing opportunities for both planetary atmospheric and asteroseismic studies.

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

Journal keyword(s): Exoplanet astronomy - Exoplanet systems - Transit photometry

VizieR on-line data: <Available at CDS (J/AJ/159/243): fig1.dat>

Simbad objects: 21

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Number of rows : 21
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 1397b Pl 00 17 47.1523790112 -66 21 32.062984452           ~ 25 0
2 HD 2685b Pl 00 29 18.9525583296 -76 18 14.621613984           ~ 19 0
3 HD 17156b Pl 02 49 44.4871034544 +71 45 11.629235988           ~ 197 1
4 HD 21749b Pl 03 26 59.2226447548 -63 29 56.762928961           ~ 49 0
5 * pi. Men PM* 05 37 09.8868446714 -80 28 08.834553264   6.25 5.67     G0V 390 1
6 NAME LP 424-4b Pl 07 59 05.8395356736 +15 23 29.236065000           ~ 387 1
7 * rho01 Cnc e Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 682 1
8 HD 80606b Pl 09 22 37.5768032712 +50 36 13.435326684           ~ 369 1
9 HD 93148b Pl 10 47 38.3506325184 +71 39 21.152505888           ~ 22 0
10 HD 97658b Pl 11 14 33.1612754184 +25 42 37.390358520           ~ 234 1
11 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 913 1
12 HD 118203 PM* 13 34 02.5393988472 +53 43 42.698012376   8.75 8.06     G0V 113 1
13 HD 118203b Pl 13 34 02.5393988472 +53 43 42.698012376           ~ 54 1
14 HD 147506b Pl 16 20 36.3576063720 +41 02 53.106772488           ~ 274 1
15 HD 149026b Pl 16 30 29.6185771608 +38 20 50.308980864           ~ 388 1
16 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1
17 CD-27 15244b Pl 21 06 31.6561051464 -26 41 33.476472456           ~ 18 0
18 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 2037 1
19 HD 219134b Pl 23 13 16.9749603608 +57 10 06.083823619           ~ 129 0
20 HD 219134c Pl 23 13 16.9749603608 +57 10 06.083823619           ~ 73 0
21 HD 221416b Pl 23 32 08.0723503368 -21 48 05.114065284           ~ 20 0

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