YNAO OpenIR  > 恒星物理研究组
MICROLENSING BINARIES WITH CANDIDATE BROWN DWARF COMPANIONS
Shin, IG; Han, C; Gould, A; Udalski, A; Sumi, T; Dominik, M; Beaulieu, JP; Tsapras, Y; Bozza, V; Szymanski, MK; Kubiak, M; Soszynski, I; Pietrzynski, G; Poleski, R; Ulaczyk, K; Pietrukowicz, P; Kozlowski, S; Skowron, J; Wyrzykowski, L; Abe, F; Bennett, DP; Bond, IA; Botzler, CS; Freeman, M; Fukui, A; Furusawa, K; Hayashi, F; Hearnshaw, JB; Hosaka, S; Itow, Y; Kamiya, K; Kilmartin, PM; Kobara, S; Korpela, A; Lin, W; Ling, CH; Makita, S; Masuda, K; Matsubara, Y; Miyake, N; Muraki, Y; Nagaya, M; Nishimoto, K; Ohnishi, K; Okumura, T; Omori, K; Perrott, YC; Rattenbury, N; Saito, T; Skuljan, L; Sullivan, DJ; Suzuki, D; Sweatman, WL; Tristram, PJ; Wada, K; Yock, PCM; Christie, GW; Depoy, DL; Dong, S; Gal-Yam, A; Gaudi, BS; Hung, LW; Janczak, J; Kaspi, S; Maoz, D; McCormick, J; McGregor, D; Moorhouse, D; Munoz, JA; Natusch, T; Nelson, C; Pogge, RW; Tan, TG; Polishook, D; Shvartzvald, Y; Shporer, A; Thornley, G; Malamud, U; Yee, JC; Choi, JY; Jung, YK; Park, H; Lee, CU; Park, BG; Koo, JR; Bajek, D; Bramich, DM; Browne, P; Horne, K; Ipatov, S; Snodgrass, C; Steele, I; Street, R; Alsubai, KA; Burgdorf, MJ; Novati, SC; Dodds, P; Dreizler, S; Fang XS(房祥松); Grundahl, F; Gu SH(顾盛宏); Hardis, S; Harpsoe, K; Hinse, TC; Hundertmark, M; Jessen-Hansen, J; Jorgensen, UG; Kains, N; Kerins, E; Liebig, C; Lund, M; Lundkvist, M; Mancini, L; Mathiasen, M; Hornstrup, A; Penny, MT; Proft, S; Rahvar, S; Ricci, D; Scarpetta, G; Skottfelt, J; Southworth, J; Surdej, J; Tregloan-Reed, J; Wertz, O; Zimmer, F; Albrow, MD; Batista, V; Brillant, S; Caldwell, JAR; Calitz, JJ; Cassan, A; Cole, A; Cook, KH; Corrales, E; Coutures, C; Dieters, S; Prester, DD; Donatowicz, J; Fouque, P; Greenhill, J; Hill, K; Hoffman, M; Kane, SR; Kubas, D; Marquette, JB; Martin, R; Meintjes, P; Menzies, J; Pollard, KR; Sahu, KC; Wambsganss, J; Williams, A; Vinter, C; Zub, M; Han, C (reprint author), Chungbuk Natl Univ, Inst Astrophys, Dept Phys, Chonju 371763, South Korea.
Source PublicationASTROPHYSICAL JOURNAL
2012-12-01
Volume760Issue:2
DOI10.1088/0004-637X/760/2/116
Contribution Rank第45完成单位
Indexed BySCI
KeywordBinaries: General Brown Dwarfs Gravitational Lensing: Micro
AbstractBrown dwarfs are important objects because they may provide a missing link between stars and planets, two populations that have dramatically different formation histories. In this paper, we present the candidate binaries with brown dwarf companions that are found by analyzing binary microlensing events discovered during the 2004-2011 observation seasons. Based on the low mass ratio criterion of q < 0.2, we found seven candidate events: OGLE-2004-BLG-035, OGLE-2004-BLG-039, OGLE-2007-BLG-006, OGLE-2007-BLG-399/MOA-2007-BLG-334, MOA-2011-BLG-104/OGLE-2011-BLG-0172, MOA-2011-BLG-149, and MOA-201-BLG-278/OGLE-2011-BLG-012N. Among them, we are able to confirm that the companions of the lenses of MOA-2011-BLG-104/OGLE-2011-BLG-0172 and MOA-2011-BLG-149 are brown dwarfs by determining the mass of the lens based on the simultaneous measurement of the Einstein radius and the lens parallax. The measured masses of the brown dwarf companions are 0.02 +/- 0.01 M-circle dot and 0.019 +/- 0.002 M-circle dot for MOA-2011-BLG-104/OGLE-2011-BLG-0172 and MOA-2011-BLG-149, respectively, and both companions are orbiting low-mass M dwarf host stars. More microlensing brown dwarfs are expected to be detected as the number of lensing events with well-covered light curves increases with new-generation searches.
Funding OrganizationNational Research Foundation of Korea [2009-0081561] ; European Research Council under the European Community's Seventh Framework Programme/ERC [246678] ; JSPS [JSPS23540339, JSPS19340058] ; German Research Foundation (DFG) ; Qatar Foundation [NPRP 09-476-1-078] ; European Union Seventh Framework Programme [268421] ; Danish Natural Science Foundation ; NSF [AST-1103471] ; NASA [NNG04GL51G] ; National Science Foundation Graduate Research Fellowship [2009068160] ; NASA through the Sagan Fellowship Program ; Korea Astronomy and Space Science Institute (KASI) [2012-1-410-02] ; Marsden Fund of New Zealand ; [JSPS22403003] ; [JSPS23340064] ; [JSPS23340044]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
WOS IDWOS:000311217000020
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordDIFFERENCE IMAGE-ANALYSIS ; III EWS DATABASE ; GALACTIC BULGE ; GRAVITATIONAL LENS ; OPTICAL DEPTH ; LIGHT CURVES ; STARS ; DISCOVERY ; PLANETS ; SEARCH
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5214
Collection恒星物理研究组
Corresponding AuthorHan, C (reprint author), Chungbuk Natl Univ, Inst Astrophys, Dept Phys, Chonju 371763, South Korea.
Recommended Citation
GB/T 7714
Shin, IG,Han, C,Gould, A,et al. MICROLENSING BINARIES WITH CANDIDATE BROWN DWARF COMPANIONS[J]. ASTROPHYSICAL JOURNAL,2012,760(2).
APA Shin, IG.,Han, C.,Gould, A.,Udalski, A.,Sumi, T.,...&Han, C .(2012).MICROLENSING BINARIES WITH CANDIDATE BROWN DWARF COMPANIONS.ASTROPHYSICAL JOURNAL,760(2).
MLA Shin, IG,et al."MICROLENSING BINARIES WITH CANDIDATE BROWN DWARF COMPANIONS".ASTROPHYSICAL JOURNAL 760.2(2012).
Files in This Item:
File Name/Size DocType Version Access License
MICROLENSING BINARIE(1919KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Shin, IG]'s Articles
[Han, C]'s Articles
[Gould, A]'s Articles
Baidu academic
Similar articles in Baidu academic
[Shin, IG]'s Articles
[Han, C]'s Articles
[Gould, A]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Shin, IG]'s Articles
[Han, C]'s Articles
[Gould, A]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: MICROLENSING BINARIES WITH CANDIDATE BROWN DWARF COMPANIONS.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.