2021AJ....162..234K

Query : 2021AJ....162..234K

2021AJ....162..234K - Astron. J., 162, 234-234 (2021/December-0)

TIC 172900988: a transiting circumbinary planet detected in one sector of TESS data.

KOSTOV V.B., POWELL B.P., OROSZ J.A., WELSH W.F., COCHRAN W., COLLINS K.A., ENDL M., HELLIER C., LATHAM D.W., MacQUEEN P., PEPPER J., QUARLES B., SAIRAM L., TORRES G., WILSON R.F., BERGERON S., BOYCE P., BIERYLA A., BUCHHEIM R., BEN CHRISTIANSEN C., CIARDI D.R., COLLINS K.I., CONTI D.M., DIXON S., GUERRA P., HAGHIGHIPOUR N., HERMAN J., HINTZ E.G., HOWARD W.S., JENSEN E.L.N., KIELKOPF J.F., KRUSE E., LAW N.M., MARTIN D., MAXTED P.F.L., MONTET B.T., MURGAS F., NELSON M., OLMSCHENK G., OTERO S., QUIMBY R., RICHMOND M., SCHWARZ R.P., SHPORER A., STASSUN K.G., STEPHENS D.C., TRIAUD A.H.M.J., ULOWETZ J., WALTER B.S., WILEY E., WOOD D., YENAWINE M., AGOL E., BARCLAY T., BEATTY T.G., BOISSE I., CALDWELL D.A., CHRISTIANSEN J., COLON K.D., DELEUIL M., DOYLE L., FAUSNAUGH M., FURESZ G., GILBERT E.A., HEBRARD G., JAMES D.J., JENKINS J., KANE S.R., KIDWELL R.C.Jr, KOPPARAPU R., LI G., LISSAUER J.J., LUND M.B., MAJEWSKI S.R., MAZEH T., QUINN S.N., QUINTANA E., RICKER G., RODRIGUEZ J.E., ROWE J., SANTERNE A., SCHLIEDER J., SEAGER S., STANDING M.R., STEVENS D.J., TING E.B., VANDERSPEK R. and WINN J.N.

Abstract (from CDS):

We report the first discovery of a transiting circumbinary planet detected from a single sector of Transiting Exoplanet Survey Satellite (TESS) data. During Sector 21, the planet TIC 172900988b transited the primary star and then five days later it transited the secondary star. The binary is itself eclipsing, with a period P ≃ 19.7 days and an eccentricity e ≃ 0.45. Archival data from ASAS-SN, Evryscope, KELT, and SuperWASP reveal a prominent apsidal motion of the binary orbit, caused by the dynamical interactions between the binary and the planet. A comprehensive photodynamical analysis of the TESS, archival and follow-up data yields stellar masses and radii of M1 = 1.2384 ±0.0007 M☉ and R1 = 1.3827 ± 0.0016 R☉ for the primary and M2 = 1.2019 ± 0.0007 M☉ and R2 = 1.3124 ±0.0012 R☉ for the secondary. The radius of the planet is R3 = 11.25 ± 0.44 R⊕ (1.004 ± 0.039RJup). The planet's mass and orbital properties are not uniquely determined-there are six solutions with nearly equal likelihood. Specifically, we find that the planet's mass is in the range of 824 <= M3 <= 981 M⊕ (2.65 <= M3 <= 3.09MJup), its orbital period could be 188.8, 190.4, 194.0, 199.0, 200.4, or 204.1 days, and the eccentricity is between 0.02 and 0.09. At V = 10.141 mag, the system is accessible for high-resolution spectroscopic observations, e.g., the Rossiter-McLaughlin effect and transit spectroscopy.

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

Journal keyword(s): Exoplanet detection methods - Exoplanets - Exoplanet astronomy - Eclipsing binary stars

Simbad objects: 24

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Number of rows : 24
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-1338b Pl 06 08 31.9675204416 -59 32 28.081703112           ~ 27 0
2 ATO J128.6375+31.5215 V* 08 34 32.9964583005 +31 31 17.503982707   12.806 12.336 12.240   ~ 2 0
3 BEBOP-2b Pl? 08 34 38.8073727048 +31 33 14.680442916           ~ 15 0
4 TYC 2483-160-1 SB* 08 34 38.8073727048 +31 33 14.680442916   10.87 10.14     ~ 23 0
5 2MASS J08343895+3132372 * 08 34 38.9608874939 +31 32 37.483354935           ~ 1 0
6 LEDA 1954290 G 08 34 39.42120 +31 35 06.1800           ~ 5 0
7 Kepler-453 EB* 18 52 57.9087897864 +46 22 42.553340616           G5 90 0
8 Kepler-1661 EB* 19 00 40.1133544368 +41 58 01.388561232           K1 36 0
9 KOI-7068 EB* 19 01 08.1560552472 +44 46 09.074847648           ~ 26 0
10 KOI-6373 EB* 19 04 37.0116650832 +39 03 56.476933236           F9 23 0
11 Kepler-38 EB* 19 07 19.2812772264 +42 16 45.121212624           ~ 107 1
12 Kepler-413 EB* 19 14 02.5619727768 +51 09 45.019100160           ~ 89 0
13 Kepler-16 SB* 19 16 18.1758378936 +51 45 26.782726104   12.1   11.90   K7V 274 1
14 Kepler-1660 EB* 19 22 12.4656326592 +40 14 06.137819484           F5V 36 0
15 HD 182488 PM* 19 23 34.0131683760 +33 13 19.078425912       5.8   K0V 306 1
16 KOI-2938 SB* 19 25 16.7624034720 +43 35 43.713991680   11.33 10.92     F2V 38 0
17 * sig Dra PM* 19 32 21.5902098601 +69 39 40.235805206 5.860 5.460 4.680 4.04 3.63 K0V 691 0
18 Kepler-35 EB* 19 37 59.2726213344 +46 41 22.952695956           ~ 146 1
19 Kepler-47 EB* 19 41 11.4983203032 +46 55 13.707336288           ~ 185 1
20 Kepler-34 EB* 19 45 44.5974898536 +44 38 29.610983076           ~ 181 1
21 Kepler-1647 EB* 19 52 36.0203935200 +40 39 22.342749552           F5 84 0
22 Kepler-1647b Pl 19 52 36.0203935200 +40 39 22.342749552           ~ 52 0
23 Kepler-64 EB* 19 52 51.6169691968 +39 57 18.370395541           F0 107 1
24 KOI-7371 EB* 19 56 18.7905054816 +48 01 19.080200208           G1V 24 0

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