OGLE-2018-BLG-0022: A Nearby M-dwarf Binary

doi:10.3847/1538-3881/ab1538

CORC > 国家天文台 > 中国科学院国家天文台

	OGLE-2018-BLG-0022: A Nearby M-dwarf Binary
	Street,R. A.4; Bachelet,E.4; Tsapras,Y.5; Hundertmark,M. P. G.5; Bozza,V.6; Dominik,M.7; Bramich,D. M.8; Cassan,A.9; Horne,K.7; Mao,S.10,11
刊名	The Astronomical Journal
	2019-05-07
卷号	157 期号:6
关键词	binaries: general gravitational lensing: micro techniques: photometric
ISSN号	0004-6256
DOI	10.3847/1538-3881/ab1538
英文摘要	Abstract We report observations of the binary microlensing event OGLE-2018-BLG-0022, provided by the Robotic Observations of Microlensing Events (ROME)/Reactive Event Assessment (REA) Survey, which indicate that the lens is a low-mass binary star consisting of M3 (0.375?±?0.020 M⊙) and M7 (0.098?±?0.005 M⊙) components. The lens is unusually close, at 0.998?±?0.047 kpc, compared with the majority of microlensing events, and despite its intrinsically low luminosity, it is likely that adaptive optics observations in the near future will be able to provide an independent confirmation of the lens masses.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0004-6256-157-6-AB1538
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/26180]
专题	中国科学院国家天文台
作者单位	1.LCOGT, 6740 Cortona Drive, Suite 102, Goleta, CA 93111, USA 2.Max-Planck-Institut für Astronomie, K?nigstuhl 17, D-69117 Heidelberg, Germany 3.Department of Physics, University of California, Santa Barbara, CA 93106-9530, USA 4.LCOGT, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA; rstreet@lco.global 5.Zentrum für Astronomie der Universit?t Heidelberg, Astronomisches Rechen-Institut, M?nchhofstr. 12-14, 69120 Heidelberg, Germany 6.Dipartimento di Fisica “E.R. Canianiello,” Universitá di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, Italy 7.Centre for Exoplanet Science, SUPA, School of Physics & Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, UK 8.New York University Abu Dhabi, Saadiyat Island, Abu Dhabi, P.O. Box 129188, United Arab Emirates 9.Institut d’Astrophysique de Paris, Sorbonne Université, CNRS, UMR 7095, 98 bis boulevard Arago, 75014 Paris, France 10.Physics Department and Tsinghua Centre for Astrophysics, Tsinghua University, Beijing 100084, People’s Republic of China
推荐引用方式 GB/T 7714	Street,R. A.,Bachelet,E.,Tsapras,Y.,et al. OGLE-2018-BLG-0022: A Nearby M-dwarf Binary[J]. The Astronomical Journal,2019,157(6).
APA	Street,R. A..,Bachelet,E..,Tsapras,Y..,Hundertmark,M. P. G..,Bozza,V..,...&Tregloan-Reed,J..(2019).OGLE-2018-BLG-0022: A Nearby M-dwarf Binary.The Astronomical Journal,157(6).
MLA	Street,R. A.,et al."OGLE-2018-BLG-0022: A Nearby M-dwarf Binary".The Astronomical Journal 157.6(2019).