Artykuł w czasopiśmie
Brak miniatury
Licencja
 

An Isolated Microlens Observed from K2, Spitzer, and Earth

Uproszczony widok
dc.abstract.enWe present the result of microlensing event MOA-2016-BLG-290, which received observations from the two-wheel Kepler (K2), Spitzer, as well as ground-based observatories. A joint analysis of data from K2 and the ground leads to two degenerate solutions of the lens mass and distance. This degeneracy is effectively broken once the (partial) Spitzer light curve is included. Altogether, the lens is found to be an extremely low-mass star or brown dwarf ({77}<SUB>-23</SUB><SUP>+34</SUP> {M}<SUB>{{J</SUB>}}) located in the Galactic bulge (6.8+/- 0.4 kpc). MOA-2016-BLG-290 is the first microlensing event for which we have signals from three well-separated (˜1 au) locations. It demonstrates the power of two-satellite microlensing experiment in reducing the ambiguity of lens properties, as pointed out independently by S. Refsdal and A. Gould several decades ago.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorZhu, Wei
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorHuang, C. X.
dc.contributor.authorNovati, S. Calchi
dc.contributor.authorSumi, T.
dc.contributor.authorPoleski, Radosław
dc.contributor.authorSkowron, Jan
dc.contributor.authorMróz, Przemysław
dc.contributor.authorSzymański, Michał
dc.contributor.authorSoszyński, Igor
dc.contributor.authorPietrukowicz, Paweł
dc.contributor.authorKozłowski, Szymon
dc.contributor.authorUlaczyk, Krzysztof
dc.contributor.authorPawlak, Michał
dc.contributor.authorBeichman, C.
dc.contributor.authorBryden, G.
dc.contributor.authorCarey, S.
dc.contributor.authorGaudi, B. S.
dc.contributor.authorGould, A.
dc.contributor.authorHenderson, C. B.
dc.contributor.authorShvartzvald, Y.
dc.contributor.authorYee, J. C.
dc.contributor.authorBond, I. A.
dc.contributor.authorBennett, D. P.
dc.contributor.authorSuzuki, D.
dc.contributor.authorRattenbury, N. J.
dc.contributor.authorKoshimoto, N.
dc.contributor.authorAbe, F.
dc.contributor.authorAsakura, Y.
dc.contributor.authorBarry, R. K.
dc.contributor.authorBhattacharya, A.
dc.contributor.authorDonachie, M.
dc.contributor.authorEvans, P.
dc.contributor.authorFukui, A.
dc.contributor.authorHirao, Y.
dc.contributor.authorItow, Y.
dc.contributor.authorKawasaki, K.
dc.contributor.authorLi, M. C. A.
dc.contributor.authorLing, C. H.
dc.contributor.authorMasuda, K.
dc.contributor.authorMatsubara, Y.
dc.contributor.authorMiyazaki, S.
dc.contributor.authorMunakata, H.
dc.contributor.authorMuraki, Y.
dc.contributor.authorNagakane, M.
dc.contributor.authorOhnishi, K.
dc.contributor.authorRanc, C.
dc.contributor.authorSaito, To.
dc.contributor.authorSharan, A.
dc.contributor.authorSullivan, D. J.
dc.contributor.authorTristram, P. J.
dc.contributor.authorYamada, T.
dc.contributor.authorYonehara, A.
dc.date.accessioned2024-01-24T16:43:24Z
dc.date.available2024-01-24T16:43:24Z
dc.date.copyright2017-09-26
dc.date.issued2017
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number2
dc.description.versionORIGINAL_AUTHOR
dc.description.volume849
dc.identifier.doi10.3847/2041-8213/AA93FA
dc.identifier.issn2041-8205
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/100934
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2017ApJ...849L..31Z
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofAstrophysical Journal Letters
dc.relation.pagesL31
dc.rightsOther
dc.sciencecloudnosend
dc.titleAn Isolated Microlens Observed from K2, Spitzer, and Earth
dc.typeJournalArticle
dspace.entity.typePublication