YNAO OpenIR  > 系外行星研究组
A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251
Kains, N; Street, RA; Choi, JY; Han, C; Udalski, A; Almeida, LA; Jablonski, F; Tristram, PJ; Jorgensen, UG; Szymanski, MK; Kubiak, M; Pietrzynski, G; Soszynski, I; Poleski, R; Kozlowski, S; Pietrukowicz, P; Ulaczyk, K; Wyrzykowski, L; Skowron, J; Alsubai, KA; Bozza, V; Browne, P; Burgdorf, MJ; Novati, SC; Dodds, P; Dominik, M; Dreizler, S; Fang XS(房祥松); Grundahl, F; Gu SH(顾盛宏); Hardis, S; Harpsoe, K; Hessman, FV; Hinse, TC; Hornstrup, A; Hundertmark, M; Jessen-Hansen, J; Kerins, E; Liebig, C; Lund, M; Lundkvist, M; Mancini, L; Mathiasen, M; Penny, MT; Rahvar, S; Ricci, D; Sahu, KC; Scarpetta, G; Skottfelt, J; Snodgrass, C; Southworth, J; Surdej, J; Tregloan-Reed, J; Wambsganss, J; Wertz, O; Bajek, D; Bramich, DM; Horne, K; Ipatov, S; Steele, IA; Tsapras, Y; Abe, F; Bennett, DP; Bond, IA; Botzler, CS; Chote, P; Freeman, M; Fukui, A; Furusawa, K; Itow, Y; Ling, CH; Masuda, K; Matsubara, Y; Miyake, N; Muraki, Y; Ohnishi, K; Rattenbury, N; Saito, T; Sullivan, DJ; Sumi, T; Suzuki, D; Suzuki, K; Sweatman, WL; Takino, S; Wada, K; Yock, PCM; Allen, W; Batista, V; Chung, SJ; Christie, G; DePoy, DL; Drummond, J; Gaudi, BS; Gould, A; Henderson, C; Jung, YK; Koo, JR; Lee, CU; McCormick, J; McGregor, D; Munoz, JA; Natusch, T; Ngan, H; Park, H; Pogge, RW; Shin, IG; Yee, J; Albrow, MD; Bachelet, E; Beaulieu, JP; Brillant, S; Caldwell, JAR; Cassan, A; Cole, A; Corrales, E; Coutures, C; Dieters, S; Prester, DD; Donatowicz, J; Fouque, P; Greenhill, J; Kane, SR; Kubas, D; Marquette, JB; Martin, R; Meintjes, P; Menzies, J; Pollard, KR; Williams, A; Wouters, D; Zub, A; Kains, N (reprint author), European So Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany.
发表期刊ASTRONOMY & ASTROPHYSICS
2013-04
卷号552
DOI10.1051/0004-6361/201220626
产权排序第18完成单位
收录类别SCI ; EI
关键词Gravitational Lensing: Weak Planets And Satellites: Detection Planetary Systems Galaxy: Bulge
摘要Aims. We present the analysis of the gravitational microlensing event OGLE-2011-BLG-0251. This anomalous event was observed by several survey and follow-up collaborations conducting microlensing observations towards the Galactic bulge. Methods. Based on detailed modelling of the observed light curve, we find that the lens is composed of two masses with a mass ratio q = 1.9 x 10(-3). Thanks to our detection of higher-order effects on the light curve due to the Earth's orbital motion and the finite size of source, we are able to measure the mass and distance to the lens unambiguously. Results. We find that the lens is made up of a planet of mass 0.53 +/- 0.21 M-J orbiting an M dwarf host star with a mass of 0.26 +/- 0.11 M-circle dot. The planetary system is located at a distance of 2.57 +/- 0.61 kpc towards the Galactic centre. The projected separation of the planet from its host star is d = 1.408 +/- 0.019, in units of the Einstein radius, which corresponds to 2.72 +/- 0.75 AU in physical units. We also identified a competitive model with similar planet and host star masses, but with a smaller orbital radius of 1.50 +/- 0.50 AU. The planet is therefore located beyond the snow line of its host star, which we estimate to be around similar to 1-1.5 AU.
项目资助者ESO ; European Community [229517, 268421] ; European Research Council under the European Community [246678] ; NPRP from the Qatar National Research Fund (a member of Qatar Foundation) [NPRP-09-476-1-78] ; Creative Research Initiative Program of National Research Foundation of Korea [2009-0081561] ; Danish Natural Science Foundation (FNU) ; German Research Foundation (DFG) ; Communaute francaise de Belgique - Actions de recherche concertees - Academie universitaire Wallonie-Europe ; Korea Research Council for Fundamental Science and Technology (KRCF) ; KASI (Korea Astronomy and Space Science Institute) [2012-1-410-02] ; National Science Foundation Graduate Research Fellowship [2009068160] ; NSF ; NASA [NNX12AB99G] ; JSPS [JSPS23540339, JSPS19340058] ; [JSPS22403003] ; [JSPS23340064] ; [JSPS23340044]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6361
URL查看原文
WOS记录号WOS:000317912000070
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]BINARY ; DWARF ; MASS ; LENS ; STARS ; ALGORITHM ; DISCOVERY ; FREQUENCY ; SYSTEMS ; SEARCH
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6796
专题系外行星研究组
通讯作者Kains, N (reprint author), European So Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany.
推荐引用方式
GB/T 7714
Kains, N,Street, RA,Choi, JY,et al. A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251[J]. ASTRONOMY & ASTROPHYSICS,2013,552.
APA Kains, N.,Street, RA.,Choi, JY.,Han, C.,Udalski, A.,...&Kains, N .(2013).A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251.ASTRONOMY & ASTROPHYSICS,552.
MLA Kains, N,et al."A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251".ASTRONOMY & ASTROPHYSICS 552(2013).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
A giant planet beyon(2949KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Kains, N]的文章
[Street, RA]的文章
[Choi, JY]的文章
百度学术
百度学术中相似的文章
[Kains, N]的文章
[Street, RA]的文章
[Choi, JY]的文章
必应学术
必应学术中相似的文章
[Kains, N]的文章
[Street, RA]的文章
[Choi, JY]的文章
相关权益政策
暂无数据
收藏/分享
文件名: A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。