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OGLE-2016-BLG-0693LB: Probing the Brown Dwarf Desert with Microlensing

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cris.lastimport.scopus2024-02-12T20:43:13Z
dc.abstract.enWe 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<SUB>-18</SUB><SUP>+20</SUP> M<SUB>J</SUB>) 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 ˜5 au, thus it is likely that the brown dwarf companion is located in the brown dwarf desert.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorRyu, Y. -H.
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorYee, J. C.
dc.contributor.authorAlbrow, M. D.
dc.contributor.authorChung, S. -J.
dc.contributor.authorGould, A.
dc.contributor.authorHan, C.
dc.contributor.authorHwang, K. -H.
dc.contributor.authorJung, Y. K.
dc.contributor.authorShin, I. -G.
dc.contributor.authorZhu, W.
dc.contributor.authorCha, S. -M.
dc.contributor.authorKim, D. -J.
dc.contributor.authorKim, H. -W.
dc.contributor.authorKim, S. -L.
dc.contributor.authorLee, C. -U.
dc.contributor.authorLee, Y.
dc.contributor.authorPark, B. -G.
dc.contributor.authorPogge, R. W.
dc.contributor.authorPietrukowicz, Paweł
dc.contributor.authorKozłowski, Szymon
dc.contributor.authorPoleski, Radosław
dc.contributor.authorSkowron, Jan
dc.contributor.authorMróz, Przemysław
dc.contributor.authorSzymański, Michał
dc.contributor.authorSoszyński, Igor
dc.contributor.authorPawlak, Michał
dc.contributor.authorUlaczyk, Krzysztof
dc.date.accessioned2024-01-25T15:40:09Z
dc.date.available2024-01-25T15:40:09Z
dc.date.copyright2017-07-05
dc.date.issued2017
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number6
dc.description.versionORIGINAL_AUTHOR
dc.description.volume154
dc.identifier.doi10.3847/1538-3881/AA8FD1
dc.identifier.issn0004-6256
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/114500
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2017AJ....154..247R
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofAstronomical Journal
dc.relation.pages247
dc.rightsOther
dc.sciencecloudnosend
dc.titleOGLE-2016-BLG-0693LB: Probing the Brown Dwarf Desert with Microlensing
dc.typeJournalArticle
dspace.entity.typePublication