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dc.contributor.authorZhu, Wei
dc.contributor.authorUdalski, A.
dc.contributor.authorGould, A.
dc.contributor.authorDominik, M.
dc.contributor.authorBozza, V.
dc.contributor.authorHan, C.
dc.contributor.authorYee, J. C.
dc.contributor.authorCalchi Novati, S.
dc.contributor.authorBeichman, C. A.
dc.contributor.authorCarey, S.
dc.contributor.authorPoleski, R.
dc.contributor.authorSkowron, J.
dc.contributor.authorKozłowski, S.
dc.contributor.authorMróz, P.
dc.contributor.authorPietrukowicz, P.
dc.contributor.authorPietrzyński, G.
dc.contributor.authorSzymański, M. K.
dc.contributor.authorSoszyński, I.
dc.contributor.authorUlaczyk, K.
dc.contributor.authorWyrzykowski, Ł.
dc.contributor.authorGaudi, B. S.
dc.contributor.authorPogge, R. W.
dc.contributor.authorDePoy, D. L.
dc.contributor.authorJung, Y. K.
dc.contributor.authorChoi, J.-Y.
dc.contributor.authorHwang, K.-H.
dc.contributor.authorShin, I.-G.
dc.contributor.authorPark, H.
dc.contributor.authorJeong, J.
dc.date.accessioned2015-06-08T14:10:03Z
dc.date.available2015-06-08T14:10:03Z
dc.date.issued2015-05-20
dc.identifier.citationZhu , W , Udalski , A , Gould , A , Dominik , M , Bozza , V , Han , C , Yee , J C , Calchi Novati , S , Beichman , C A , Carey , S , Poleski , R , Skowron , J , Kozłowski , S , Mróz , P , Pietrukowicz , P , Pietrzyński , G , Szymański , M K , Soszyński , I , Ulaczyk , K , Wyrzykowski , Ł , Gaudi , B S , Pogge , R W , DePoy , D L , Jung , Y K , Choi , J-Y , Hwang , K-H , Shin , I-G , Park , H & Jeong , J 2015 , ' Spitzer as a microlens parallax satellite : mass and distance measurements of the binary lens system OGLE-2014-BLG-1050L ' , Astrophysical Journal , vol. 805 , no. 1 . https://doi.org/10.1088/0004-637X/805/1/8en
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 192927618
dc.identifier.otherPURE UUID: 3a42d368-dd7b-4c5e-a0c7-cf866abc01db
dc.identifier.otherBibCode: 2015ApJ...805....8Z
dc.identifier.otherWOS: 000354991300008
dc.identifier.otherScopus: 84930198056
dc.identifier.otherORCID: /0000-0002-3202-0343/work/75996782
dc.identifier.urihttp://hdl.handle.net/10023/6781
dc.description.abstractWe report the first mass and distance measurements of a caustic-crossing binary system OGLE-2014-BLG-1050 L using the space-based microlens parallax method. Spitzer captured the second caustic crossing of the event, which occurred ~10 days before that seen from Earth. Due to the coincidence that the source-lens relative motion was almost parallel to the direction of the binary-lens axis, the fourfold degeneracy, which was known before only to occur in single-lens events, persists in this case, leading to either a lower-mass (0.2 and 0.07 MΘ) binary at ~1.1 kpc or a higher-mass (0.9 and 0.35 MΘ) binary at ~3.5 kpc. However, the latter solution is strongly preferred for reasons including blending and lensing probability. OGLE-2014-BLG-1050 L demonstrates the power of microlens parallax in probing stellar and substellar binaries.
dc.language.isoeng
dc.relation.ispartofAstrophysical Journalen
dc.rights© 2015. The American Astronomical Society. All rights reserved. Reproduced in accordance with IOP copyright policy.en
dc.subjectBinaries: generalen
dc.subjectGravitational lensing: microen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleSpitzer as a microlens parallax satellite : mass and distance measurements of the binary lens system OGLE-2014-BLG-1050Len
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1088/0004-637X/805/1/8
dc.description.statusPeer revieweden
dc.identifier.urlhttp://adsabs.harvard.edu/abs/2015ApJ...805....8Zen


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