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DOI | 10.3847/1538-3881/aa8fd1 |
OGLE-2016-BLG-0693LB: Probing the Brown Dwarf Desert with Microlensing | |
Ryu, Y. -H.1; Udalski, A.2; Yee, J. C.3; Albrow, M. D.4; Chung, S. -J.1,5; Gould, A.1,6,7; Han, C.8; Hwang, K. -H.1; Jung, Y. K.3; Shin, I. -G.3; Zhu, W.7; Cha, S. -M.9; Kim, D. -J.1; Kim, H. -W.1; Kim, S. -L.1,5; Lee, C. -U.1,5; Lee, Y.1,9; Park, B. -G.1,5; Pogge, R. W.7; Pietrukowicz, P.2; Kozlowski, S.2; Poleski, R.2,7; Skowron, J.2; Mroz, P.2; Szymanski, M. K.2; Soszynski, I.2; Pawlak, M.2; Ulaczyk, K.2 | |
通讯作者 | Ryu, Y. -H. |
来源期刊 | ASTRONOMICAL JOURNAL
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ISSN | 0004-6256 |
EISSN | 1538-3881 |
出版年 | 2017 |
卷号 | 154期号:6 |
英文摘要 | We present an analysis of microlensing event OGLE-2016-BLG-0693, based on the survey-only microlensing observations by the OGLE and KMTNet groups. In order to analyze the light curve, we consider the effects of parallax, orbital motion, and baseline slope, and also refine the result using a Galactic model prior. From the microlensing analysis, we find that the event is a binary composed of a low-mass brown dwarf (49(-18)(+20) Mj) companion and a K- or G-dwarf host, which lies at a distance of 5.0 +/- 0.6 kpc toward the Galactic bulge. The projected separation between the brown dwarf and its host star is less than similar to 5 au, thus it is likely that the brown dwarf companion is located in the brown dwarf desert. |
英文关键词 | binaries: general brown dwarfs gravitational lensing: micro |
类型 | Article |
语种 | 英语 |
国家 | South Korea ; Poland ; USA ; New Zealand ; Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000415961600005 |
WOS关键词 | GRAVITATIONAL LENSING EXPERIMENT ; HUBBLE-SPACE-TELESCOPE ; GALACTIC BULGE ; PLANETS ; PHOTOMETRY ; SYSTEMS ; MASS ; MULTIPLICITY ; FREQUENCY ; GIANT |
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/2XILL650/197585 |
作者单位 | 1.Korea Astron & Space Sci Inst, Daejon 34055, South Korea; 2.Univ Warsaw Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland; 3.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA; 4.Univ Canterbury, Dept Phys & Astron, Private Bag 4800, Christchurch 8020, New Zealand; 5.Korea Univ Sci & Technol, Astron & Space Sci Major, Daejeon 34113, South Korea; 6.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany; 7.Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA; 8.Chungbuk Natl Univ, Dept Phys, Cheongju 28644, South Korea; 9.Kyung Hee Univ, Sch Space Res, Yongin 17104, Kyeonggi, South Korea |
推荐引用方式 GB/T 7714 | Ryu, Y. -H.,Udalski, A.,Yee, J. C.,et al. OGLE-2016-BLG-0693LB: Probing the Brown Dwarf Desert with Microlensing[J],2017,154(6). |
APA | Ryu, Y. -H..,Udalski, A..,Yee, J. C..,Albrow, M. D..,Chung, S. -J..,...&Ulaczyk, K..(2017).OGLE-2016-BLG-0693LB: Probing the Brown Dwarf Desert with Microlensing.ASTRONOMICAL JOURNAL,154(6). |
MLA | Ryu, Y. -H.,et al."OGLE-2016-BLG-0693LB: Probing the Brown Dwarf Desert with Microlensing".ASTRONOMICAL JOURNAL 154.6(2017). |
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