OGLE-2016-BLG-1469L: Microlensing Binary Composed of Brown Dwarfs

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dc.contributor.authorHan C
dc.contributor.authorUdalski A
dc.contributor.authorSumi T
dc.contributor.authorGould A
dc.contributor.authorAlbrow MD
dc.contributor.authorChung SJ
dc.contributor.authorJung YK
dc.contributor.authorRyu YH
dc.contributor.authorShin IG
dc.contributor.authorYee JC
dc.contributor.authorZhu W
dc.contributor.authorCha SM
dc.contributor.authorKim SL
dc.contributor.authorKim DJ
dc.contributor.authorLee CU
dc.contributor.authorLee Y
dc.contributor.authorPark BG
dc.contributor.authorSoszyński I
dc.contributor.authorMróz P
dc.contributor.authorPietrukowicz P
dc.contributor.authorSzymański MK
dc.contributor.authorSkowron J
dc.contributor.authorPoleski R
dc.contributor.authorKozłowski S
dc.contributor.authorUlaczyk K
dc.contributor.authorPawlak M
dc.contributor.authorAbe F
dc.contributor.authorAsakura Y
dc.contributor.authorBennett DP
dc.contributor.authorBond IA
dc.contributor.authorBhattacharya A
dc.contributor.authorDonachie M
dc.contributor.authorFreeman M
dc.contributor.authorFukui A
dc.contributor.authorHirao Y
dc.contributor.authorItow Y
dc.contributor.authorKoshimoto N
dc.contributor.authorLi MCA
dc.contributor.authorLing CH
dc.contributor.authorMasuda K
dc.contributor.authorMatsubara Y
dc.contributor.authorMuraki Y
dc.contributor.authorNagakane M
dc.contributor.authorOhnishi K
dc.contributor.authorOyokawa H
dc.contributor.authorRattenbury NJ
dc.contributor.authorSaito T
dc.contributor.authorSharan A
dc.contributor.authorSullivan DJ
dc.contributor.authorSuzuki D
dc.contributor.authorTristram PJ
dc.contributor.authorYamada T
dc.contributor.authorYamada T
dc.contributor.authorYonehara A
dc.contributor.authorBarry R
dc.date.accessioned2018-01-12T00:48:47Z
dc.date.available2018-01-12T00:48:47Z
dc.date.issued2017en
dc.date.updated2017-08-07T20:44:47Z
dc.description.abstract© 2017. The American Astronomical Society. All rights reserved. We report the discovery of a binary composed of two brown dwarfs, based on the analysis of the microlensing event OGLE-2016-BLG-1469. Thanks to the detection of both finite-source and microlens-parallax effects, we are able to measure both the masses M 1 ∼ 0.05 M⊙ and M 2 ∼ 0.01 M⊙, and the distance D L ∼ 4.5 kpc, as well as the projected separation a ⊥ ∼ 0.33 au. This is the third brown-dwarf binary detected using the microlensing method, demonstrating the usefulness of microlensing in detecting field brown-dwarf binaries with separations of less than 1 au.en
dc.identifier.citationHan C, Udalski A, Sumi T, Gould A, Albrow MD, Chung SJ, Jung YK, Ryu YH, Shin IG, Yee JC, Zhu W, Cha SM, Kim SL, Kim DJ, Lee CU, Lee Y, Park BG, Soszyński I, Mróz P, Pietrukowicz P, Szymański MK, Skowron J, Poleski R, Kozłowski S, Ulaczyk K, Pawlak M, Abe F, Asakura Y, Bennett DP, Bond IA, Bhattacharya A, Donachie M, Freeman M, Fukui A, Hirao Y, Itow Y, Koshimoto N, Li MCA, Ling CH, Masuda K, Matsubara Y, Muraki Y, Nagakane M, Ohnishi K, Oyokawa H, Rattenbury NJ, Saito T, Sharan A, Sullivan DJ, Suzuki D, Tristram PJ, Yamada T, Yamada T, Yonehara A, Barry R (2017). OGLE-2016-BLG-1469L: Microlensing Binary Composed of Brown Dwarfs. Astrophysical Journal. 843(1). 59-59.en
dc.identifier.doihttps://doi.org/10.3847/1538-4357/aa740e
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.urihttp://hdl.handle.net/10092/14948
dc.language.isoen
dc.subjectbinaries: generalen
dc.subjectbrown dwarfsen
dc.subjectgravitational lensing: microen
dc.subject.anzsrcFields of Research::51 - Physical sciences::5101 - Astronomical sciences::510103 - Cosmology and extragalactic astronomyen
dc.titleOGLE-2016-BLG-1469L: Microlensing Binary Composed of Brown Dwarfsen
dc.typeJournal Articleen
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