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First Assessment of the Binary Lens OGLE-2015-BLG-0232

文献类型：期刊论文

作者Bachelet, E.1; Bozza, V.2,3; Han, C.4; Udalski, A.5; Bond, I. A.6; Beaulieu, J. -P.7,8,9; Street, R. A.1; Kim, H. -I10; Bramich, D. M.11; Cassan, A.8,9
刊名ASTROPHYSICAL JOURNAL
出版日期2019
卷号870期号:1页码:10
关键词binaries: general gravitational lensing: micro
ISSN号0004-637X
DOI10.3847/1538-4357/aaedb9
英文摘要We present an analysis of the microlensing event OGLE-2015-BLG-0232. This event is challenging to characterize for two reasons. First, the light curve is not well sampled during the caustic crossing due to the proximity of the full Moon impacting the photometry quality. Moreover, the source brightness is difficult to estimate because this event is blended with a nearby K dwarf star. We found that the light-curve deviations are likely due to a close brown dwarf companion (i.e., s = 0.55 and q = 0.06), but the exact nature of the lens is still unknown. We finally discuss the potential of follow-up observations to estimate the lens mass and distance in the future.
WOS关键词SAGITTARIUS DWARF GALAXY ; MICROLENSING EVENTS ; PROPER MOTIONS ; GRAVITATIONAL LENS ; MILKY-WAY ; MASS ; PLANETARY ; STELLAR ; SYSTEMS ; BULGE
资助项目NASA[NASA-80NSSC18K0274] ; NASA[NNX15AC97G] ; National Research Foundation of Korea[2017R1A4A1015178] ; National Science Centre, Poland[MAESTRO 2014/14/A/ST9/00121] ; JSPS KAKENHI[JSPS24253004] ; JSPS KAKENHI[JSPS26247023] ; JSPS KAKENHI[JSPS23340064] ; JSPS KAKENHI[JSPS15H00781] ; JSPS KAKENHI[JP16H06287] ; JSPS KAKENHI[JP17H02871] ; NASA ; National Aeronautics and Space Administration ; National Science Foundation ; SCIENCE and HCM plans of the European Commission[CT920791] ; SCIENCE and HCM plans of the European Commission[CT940627] ; INSU ; MEN ; CNRS in France ; State of Baden-Wurttemberg in Germany ; DGICYT in Spain ; CNR in Italy ; FFwFBWF in Austria ; FAPESP in Brazil ; OTKA in Hungary[F-4239] ; OTKA in Hungary[F-013990] ; ESO CEE grant[A-04-046] ; Gaia Multilateral Agreement
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000454541100011
出版者IOP PUBLISHING LTD
资助机构NASA ; NASA ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Centre, Poland ; National Science Centre, Poland ; JSPS KAKENHI ; JSPS KAKENHI ; NASA ; NASA ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; SCIENCE and HCM plans of the European Commission ; SCIENCE and HCM plans of the European Commission ; INSU ; INSU ; MEN ; MEN ; CNRS in France ; CNRS in France ; State of Baden-Wurttemberg in Germany ; State of Baden-Wurttemberg in Germany ; DGICYT in Spain ; DGICYT in Spain ; CNR in Italy ; CNR in Italy ; FFwFBWF in Austria ; FFwFBWF in Austria ; FAPESP in Brazil ; FAPESP in Brazil ; OTKA in Hungary ; OTKA in Hungary ; ESO CEE grant ; ESO CEE grant ; Gaia Multilateral Agreement ; Gaia Multilateral Agreement ; NASA ; NASA ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Centre, Poland ; National Science Centre, Poland ; JSPS KAKENHI ; JSPS KAKENHI ; NASA ; NASA ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; SCIENCE and HCM plans of the European Commission ; SCIENCE and HCM plans of the European Commission ; INSU ; INSU ; MEN ; MEN ; CNRS in France ; CNRS in France ; State of Baden-Wurttemberg in Germany ; State of Baden-Wurttemberg in Germany ; DGICYT in Spain ; DGICYT in Spain ; CNR in Italy ; CNR in Italy ; FFwFBWF in Austria ; FFwFBWF in Austria ; FAPESP in Brazil ; FAPESP in Brazil ; OTKA in Hungary ; OTKA in Hungary ; ESO CEE grant ; ESO CEE grant ; Gaia Multilateral Agreement ; Gaia Multilateral Agreement ; NASA ; NASA ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Centre, Poland ; National Science Centre, Poland ; JSPS KAKENHI ; JSPS KAKENHI ; NASA ; NASA ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; SCIENCE and HCM plans of the European Commission ; SCIENCE and HCM plans of the European Commission ; INSU ; INSU ; MEN ; MEN ; CNRS in France ; CNRS in France ; State of Baden-Wurttemberg in Germany ; State of Baden-Wurttemberg in Germany ; DGICYT in Spain ; DGICYT in Spain ; CNR in Italy ; CNR in Italy ; FFwFBWF in Austria ; FFwFBWF in Austria ; FAPESP in Brazil ; FAPESP in Brazil ; OTKA in Hungary ; OTKA in Hungary ; ESO CEE grant ; ESO CEE grant ; Gaia Multilateral Agreement ; Gaia Multilateral Agreement ; NASA ; NASA ; National Research Foundation of Korea ; National Research Foundation of Korea ; National Science Centre, Poland ; National Science Centre, Poland ; JSPS KAKENHI ; JSPS KAKENHI ; NASA ; NASA ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration ; National Science Foundation ; National Science Foundation ; SCIENCE and HCM plans of the European Commission ; SCIENCE and HCM plans of the European Commission ; INSU ; INSU ; MEN ; MEN ; CNRS in France ; CNRS in France ; State of Baden-Wurttemberg in Germany ; State of Baden-Wurttemberg in Germany ; DGICYT in Spain ; DGICYT in Spain ; CNR in Italy ; CNR in Italy ; FFwFBWF in Austria ; FFwFBWF in Austria ; FAPESP in Brazil ; FAPESP in Brazil ; OTKA in Hungary ; OTKA in Hungary ; ESO CEE grant ; ESO CEE grant ; Gaia Multilateral Agreement ; Gaia Multilateral Agreement
源URL[http://ir.bao.ac.cn/handle/114a11/24273]  
专题中国科学院国家天文台
通讯作者Beaulieu, J. -P.
作者单位1.Las Cumbres Observ, 6740 Cortona Dr,Suite 102, Goleta, CA 93117 USA
2.Univ Salerno, Dipartimento Fis ER Caianiello, Via Giovanni Paolo II 132, Fisciano, Italy
3.IIASS, Via G Pellegrino 19, I-84019 Vietri Sul Mare, SA, Italy
4.Chungbuk Natl Univ, Dept Phys, Cheongju 28644, South Korea
5.Univ Warsaw Observ, Al Ujazdowskie 4, PL-00478 Warsaw, Poland
6.Massey Univ, Inst Nat & Math Sci, Auckland 0745, New Zealand
7.Univ Tasmania, Sch Phys Sci, Private Bag 37, Hobart, Tas 7001, Australia
8.Univ Paris 06, UPMC, Sorbonne Univ, 98 Bis Bd Arago, F-75014 Paris, France
9.CNRS, UMR 7095, Inst Astrophys Paris, 98 Bis Bd Arago, F-75014 Paris, France
10.Korea Astron & Space Sci Inst, Daejon 34055, South Korea
推荐引用方式
GB/T 7714		 Bachelet, E.,Bozza, V.,Han, C.,et al. First Assessment of the Binary Lens OGLE-2015-BLG-0232[J]. ASTROPHYSICAL JOURNAL,2019,870(1):10.
APA Bachelet, E..,Bozza, V..,Han, C..,Udalski, A..,Bond, I. A..,...&Yonehara, A..(2019).First Assessment of the Binary Lens OGLE-2015-BLG-0232.ASTROPHYSICAL JOURNAL,870(1),10.
MLA Bachelet, E.,et al."First Assessment of the Binary Lens OGLE-2015-BLG-0232".ASTROPHYSICAL JOURNAL 870.1(2019):10.

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