2017MNRAS.464.2708S

Query : 2017MNRAS.464.2708S

2017MNRAS.464.2708S - Mon. Not. R. Astron. Soc., 464, 2708-2716 (2017/January-3)

K2-99: a subgiant hosting a transiting warm Jupiter in an eccentric orbit and a long-period companion.

SMITH A.M.S., GANDOLFI D., BARRAGAN O., BOWLER B., CSIZMADIA S., ENDL M., FRIDLUND M.C.V., GRZIWA S., GUENTHER E., HATZES A.P., NOWAK G., ALBRECHT S., ALONSO R., CABRERA J., COCHRAN W.D., DEEG H.J., CUSANO F., EIGMULLER P., ERIKSON A., HIDALGO D., HIRANO T., JOHNSON M.C., KORTH J., MANN A., NARITA N., NESPRAL D., PALLE E., PATZOLD M., PRIETO-ARRANZ J., RAUER H., RIBAS I., TINGLEY B. and WOLTHOFF V.

Abstract (from CDS):

We report the discovery from K2 of a transiting planet in an 18.25-d, eccentric (0.19 ± 0.04) orbit around K2-99, an 11th magnitude subgiant in Virgo. We confirm the planetary nature of the companion with radial velocities, and determine that the star is a metal-rich ([Fe/H] = 0.20 ± 0.05) subgiant, with mass 1.60+0.14–0.10 M☉ and radius 3.1 ± 0.1 R☉. The planet has a mass of 0.97 ± 0.09 MJup and a radius 1.29 ± 0.05 RJup. A measured systemic radial acceleration of -2.12 ± 0.04 ms–1 d–1 offers compelling evidence for the existence of a third body in the system, perhaps a brown dwarf orbiting with a period of several hundred days.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): planets and satellites: detection - planets and satellites: individual: K2-99 - planetary system - planetary system

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 * 37 Gem * 06 55 18.6663587832 +25 22 32.503553004   6.343 5.748     G0V 246 0
2 BD-04 3588b Pl 13 55 05.7031605792 -05 26 32.949326652           ~ 28 0
3 BD-04 3588 * 13 55 05.7031605792 -05 26 32.949326652   11.75 11.15     F7 37 0
4 Kepler-435 Er* 19 29 08.9490159624 +43 11 50.159878764   14.228 13.772 13.665 12.92 F5V 77 1
5 WASP-47 * 22 04 48.7261549272 -12 01 07.998743676     11.99 11.82   ~ 217 1
6 BD-09 6003b Pl 22 33 28.4132310576 -09 01 21.975635100           ~ 26 0

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