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OGLE-LMC-ECL-11893 : the discovery of a long-period eclipsing binary with a circumstellar disk

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dc.contributor.authorDong, S.
dc.contributor.authorKatz, B.
dc.contributor.authorPrieto, J.L.
dc.contributor.authorUdalski, A.
dc.contributor.authorKozlowski, S.
dc.contributor.authorStreet, R.A.
dc.contributor.authorBramich, D.M.
dc.contributor.authorTsapras, Y.
dc.contributor.authorHundertmark, M.
dc.contributor.authorSnodgrass, C.
dc.contributor.authorHorne, K.
dc.contributor.authorDominik, M.
dc.contributor.authorFiguera Jaimes, Roberto Jose
dc.date.accessioned2014-08-29T12:01:00Z
dc.date.available2014-08-29T12:01:00Z
dc.date.issued2014-06-10
dc.identifier.citationDong , S , Katz , B , Prieto , J L , Udalski , A , Kozlowski , S , Street , R A , Bramich , D M , Tsapras , Y , Hundertmark , M , Snodgrass , C , Horne , K , Dominik , M & Figuera Jaimes , R J 2014 , ' OGLE-LMC-ECL-11893 : the discovery of a long-period eclipsing binary with a circumstellar disk ' , Astrophysical Journal , vol. 788 , no. 1 . https://doi.org/10.1088/0004-637X/788/1/41en
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 144259787
dc.identifier.otherPURE UUID: 18fc0452-04b0-4832-aac4-28d0ce3cb07b
dc.identifier.otherScopus: 84901789740
dc.identifier.otherWOS: 000337095200041
dc.identifier.otherORCID: /0000-0002-3202-0343/work/75996768
dc.identifier.urihttp://hdl.handle.net/10023/5294
dc.descriptionS.D. is supported by "the Strategic Priority Research Program-The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (grant No. XDB09000000). The OGLE project has received funding from the European Research Council under the European Community's Seventh Framework Programme (FP7/20072013)/ERC grant agreement No. 246678 to A.U. M.D., R.F.J., K.H., R.A.S., C.S., and Y.T. are supported by NPRP grant NPRP-09-476-1-78 from the Qatar National Research Fund (a member of Qatar Foundation). D.M.B.'s contribution to this publication was made possible by NPRP grant # X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). C.S. has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement No. 268421.en
dc.description.abstractWe report the serendipitous discovery of a disk-eclipse system OGLE-LMC-ECL-11893. The eclipse occurs with a period of 468 days, a duration of about 15 days, and a deep (up to ΔmI 1.5), peculiar, and asymmetric profile. A possible origin of such an eclipse profile involves a circumstellar disk. The presence of the disk is confirmed by the H-α line profile from the follow-up spectroscopic observations, and the star is identified as Be/Ae type. Unlike the previously known disk-eclipse candidates, the eclipses of OGLE-LMC-ECL-11893 retain the same shape throughout the span of ∼17 yr (13 orbital periods), indicating no measurable orbital precession of the disk.
dc.format.extent4
dc.language.isoeng
dc.relation.ispartofAstrophysical Journalen
dc.rights© 2014. The American Astronomical Society. All rights reserved.en
dc.subjectBinaries: eclipsingen
dc.subjectCircumstellar matteren
dc.subjectStars: individual (OGLE-LMC-ECL-11893)en
dc.subjectStars: variables: T Taurien
dc.subjectHerbig Ae/Been
dc.subjectQB Astronomyen
dc.subject.lccQBen
dc.titleOGLE-LMC-ECL-11893 : the discovery of a long-period eclipsing binary with a circumstellar disken
dc.typeJournal articleen
dc.contributor.sponsorThe Royal Societyen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1088/0004-637X/788/1/41
dc.description.statusPeer revieweden
dc.identifier.grantnumberUF100010 / UF130581en
dc.identifier.grantnumberST/J001651/1en


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