干旱区生态环境知识资源中心(Arid): K2-99: a subgiant hosting a transiting warm Jupiter in an eccentric orbit and a long-period companion

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DOI	10.1093/mnras/stw2487
	K2-99: a subgiant hosting a transiting warm Jupiter in an eccentric orbit and a long-period companion
	Smith, A. M. S.1; Gandolfi, D.2,3; Barragan, O.2; Bowler, B.4,5; Csizmadia, Sz.1; Endl, M.4,5; Fridlund, M. C. V.6,7; Grziwa, S.8; Guenther, E.9; Hatzes, A. P.9; Nowak, G.10,11; Albrecht, S.12; Alonso, R.10,11; Cabrera, J.1; Cochran, W. D.4,5; Deeg, H. J.10,11; Cusano, F.13; Eigmueller, Ph.1; Erikson, A.1; Hidalgo, D.10,11; Hirano, T.14; Johnson, M. C.4,5,15; Korth, J.8; Mann, A.4,5; Narita, N.16,17,18; Nespral, D.10,11; Palle, E.10,11; Paetzold, M.8; Prieto-Arranz, J.10,11; Rauer, H.1,19; Ribas, I.20; Tingley, B.12; Wolthoff, V.3
通讯作者	Smith, A. M. S.
来源期刊	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN	0035-8711
EISSN	1365-2966
出版年	2017
卷号	464 期号:3 页码:2708-2716
英文摘要	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 (circle dot) and radius 3.1 +/- 0.1 R-circle dot. The planet has a mass of 0.97 +/- 0.09 M-Jup and a radius 1.29 +/- 0.05 R-Jup. 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.
英文关键词	planets and satellites: detection planets and satellites: individual: K2-99 planetary system
类型	Article
语种	英语
国家	Germany ; Italy ; USA ; Netherlands ; Sweden ; Spain ; Denmark ; Japan
收录类别	SCI-E
WOS记录号	WOS:000393647600016
WOS关键词	PLANET-PLANET INTERACTIONS ; BROWN DWARF DESERT ; SOLAR-TYPE STARS ; HOT-JUPITERS ; RADIAL-VELOCITY ; EXTRASOLAR PLANETS ; MASS-DISTRIBUTION ; GIANT PLANETS ; LIGHT CURVES ; KEPLER
WOS类目	Astronomy & Astrophysics
WOS研究方向	Astronomy & Astrophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/201163
作者单位	1.German Aerosp Ctr, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany; 2.Univ Turin, Dipartimento Fis, Via P Giuria 1, I-10125 Turin, Italy; 3.Heidelberg Univ, Landessternwarte Konigstuhl, Zentrum Astron, Konigstuhl 12, D-69117 Heidelberg, Germany; 4.Univ Texas Austin, Dept Astron, 2515 Speedway,Stop C1400, Austin, TX 78712 USA; 5.Univ Texas Austin, McDonald Observ, 2515 Speedway,Stop C1400, Austin, TX 78712 USA; 6.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands; 7.Chalmers, Onsala Space Observ, Dept Earth & Space Sci, SE-43992 Onsala, Sweden; 8.Univ Cologne, Rhein Inst Umweltforsch, Abt Planetenforsch, Aachener Str 209, D-50931 Cologne, Germany; 9.Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg, Germany; 10.Inst Astrofis Canarias, E-38205 Tenerife, Spain; 11.Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain; 12.Aarhus Univ, Dept Phys & Astron, Stellar Astrophys Ctr, Ny Munkegade 120, DK-8000 Aarhus C, Denmark; 13.INAF Osservatorio Astron Bologna, Via Ranzani 1, I-40127 Bologna, Italy; 14.Tokyo Inst Technol, Dept Earth & Planetary Sci, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528551, Japan; 15.Ohio State Univ, Dept Astron, 140 West 18th Ave, Columbus, OH 43210 USA; 16.Univ Tokyo, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan; 17.Natl Inst Nat Sci, Astrobiol Ctr, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan; 18.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan; 19.TU Berlin, Ctr Astron & Astrophys, Hardenbergstr 36, D-10623 Berlin, Germany; 20.Inst Ciencies Espai CSIC IEEC, Carrer Can Magrans,Campus UAB, E-08193 Bellaterra, Spain
推荐引用方式 GB/T 7714	Smith, A. M. S.,Gandolfi, D.,Barragan, O.,et al. K2-99: a subgiant hosting a transiting warm Jupiter in an eccentric orbit and a long-period companion[J],2017,464(3):2708-2716.
APA	Smith, A. M. S..,Gandolfi, D..,Barragan, O..,Bowler, B..,Csizmadia, Sz..,...&Wolthoff, V..(2017).K2-99: a subgiant hosting a transiting warm Jupiter in an eccentric orbit and a long-period companion.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,464(3),2708-2716.
MLA	Smith, A. M. S.,et al."K2-99: a subgiant hosting a transiting warm Jupiter in an eccentric orbit and a long-period companion".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 464.3(2017):2708-2716.