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| DOI | 10.1051/0004-6361/201730928 |
| A companion on the planet/brown dwarf mass boundary on a wide orbit discovered by gravitational microlensing | |
| Poleski, R.1,2; Udalski, A.2; Bond, I. A.3; Beaulieu, J. P.4,5,6,7; Clanton, C.8; Gaudi, S.1; Szymanski, M. K.2; Soszynski, I.2; Pietrukowicz, P.2; Kozlowski, Szymon2; Skowron, J.2; Wyrzykowski, L.2; Ulaczyk, K.2,9; Bennett, D. P.10; Sumi, T.11; Suzuki, D.10; Rattenbury, N. J.12; Koshimoto, N.11; Abe, F.13; Asakura, Y.13; Barry, R. K.10; Bhattacharya, A.10,14; Donachie, M.12; Evans, P.12; Fukui, A.15; Hirao, Y.11; Itow, Y.13; Li, M. C. A.12; Ling, C. H.3; Masuda, K.13; Matsubara, Y.13; Muraki, Y.13; Nagakane, M.; Ohnishi, K.16; Ranc, C.10; Saito, To17; Sharan, A.12; Sullivan, D. J.18; Tristram, P. J.19; Yamada, T.; Yamada, T.20; Yonehara, A.20; Batista, V.4,5; Marquette, J. B.4,5 | |
| 通讯作者 | Poleski, R. |
| 来源期刊 | ASTRONOMY & ASTROPHYSICS
 |
| ISSN | 1432-0746 |
| 出版年 | 2017 |
| 卷号 | 604 |
| 英文摘要 | We present the discovery of a substellar companion to the primary host lens in the microlensing event MOA-2012-BLG-006. The companion-to-host mass ratio is 0.016, corresponding to a companion mass of approximate to 8 M-Jup(M-*/0.5 M-circle dot). Thus, the companion is either a high-mass giant planet or a low-mass brown dwarf, depending on the mass of the primary M-*. The companion signal was separated from the peak of the primary event by a time that was as much as four times longer than the event timescale. We therefore infer a relatively large projected separation of the companion from its host of approximate to 10 au(M-*/0.5 M-circle dot)(1/2) for a wide range (3-7 kpc) of host star distances from the Earth. We also challenge a previous claim of a planetary companion to the lens star in microlensing event OGLE-2002-BLG-045. |
| 英文关键词 | gravitational lensing: micro instrumentation: high angular resolution planetary systems brown dwarfs |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | USA ; Poland ; New Zealand ; France ; Australia ; England ; Japan |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000408480100123 |
| WOS关键词 | GALACTIC BULGE ; LENSING EXPERIMENT ; NEPTUNE-MASS ; EVENT ; BINARY ; PLANETS ; DESERT ; PREDICTIONS ; POPULATION ; EFFICIENT |
| 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/2XILL650/197589 |
| 作者单位 | 1.Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA; 2.Univ Warsaw Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland; 3.Massey Univ, Inst Nat & Math Sci, Private Bag 102904 North Shore Mail Ctr, Auckland 0745, New Zealand; 4.UPMC Univ Paris 6, Sorbonne Univ, 98bis Bd Arago, F-75014 Paris, France; 5.Inst Astrophys Paris, CNRS, UMR 7095, 98bis Bd Arago, F-75014 Paris, France; 6.LESIA Observ Paris, Sect Meudon, 5 Pl Jules Janssen, F-92195 Meudon, France; 7.Univ Tasmania, Sch Phys Sci, Private Bag 37 Hobart, Hobart 7001, Australia; 8.NASA, Ames Res Ctr, Space Sci & Astrobiol Div, Moffett Field, CA 94035 USA; 9.Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England; 10.NASA, Goddard Space Flight Ctr, Lab Exoplanets & Stellar Astrophys, Greenbelt, MD 20771 USA; 11.Osaka Univ, Grad Sch Sci, Dept Earth & Space Sci, 1-1 Machikaneyama, Osaka 5600043, Japan; 12.Univ Auckland, Dept Phys, Private Bag 92019, Auckland, New Zealand; 13.Nagoya Univ, Inst Space Earth Environm Res, Furo Cho, Nagoya, Aichi 4648601, Japan; 14.Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA; 15.Okayama Astrophys Natl Astron Observ, 3037-5 Honjo, Okayama 7190232, Japan; 16.Nagano Natl Coll Technol, Nagano 3818550, Japan; 17.Tokyo Metropolitan Coll Ind Technol, Tokyo 1168523, Japan; 18.Victoria Univ, Sch Chem & Phys Sci, Wellington, New Zealand; 19.Univ Canterbury Mt John Observ, POB 56, Lake Tekapo 7945, New Zealand; 20.Kyoto Sangyo Univ, Dept Phys, Fac Sci, Kyoto 6038555, Japan |
| 推荐引用方式 GB/T 7714 | Poleski, R.,Udalski, A.,Bond, I. A.,et al. A companion on the planet/brown dwarf mass boundary on a wide orbit discovered by gravitational microlensing[J],2017,604. |
| APA | Poleski, R..,Udalski, A..,Bond, I. A..,Beaulieu, J. P..,Clanton, C..,...&Marquette, J. B..(2017).A companion on the planet/brown dwarf mass boundary on a wide orbit discovered by gravitational microlensing.ASTRONOMY & ASTROPHYSICS,604. |
| MLA | Poleski, R.,et al."A companion on the planet/brown dwarf mass boundary on a wide orbit discovered by gravitational microlensing".ASTRONOMY & ASTROPHYSICS 604(2017). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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