Blue Variable Stars From the MACHO Database. I. Photometry and Spectroscopy of the Large Magellanic Cloud Sample

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dc.contributor.authorKeller, S C
dc.contributor.authorBessell, Michael
dc.contributor.authorCook, Kem H
dc.contributor.authorGeha, M
dc.contributor.authorSyphers, D
dc.date.accessioned2015-12-13T22:31:02Z
dc.date.available2015-12-13T22:31:02Z
dc.date.issued2002
dc.date.updated2015-12-11T08:58:33Z
dc.description.abstractWe present the photometric properties of 1279 blue variable stars within the Large Megallanic Cloud. Photometry is derived from the MACHO database. The light curves of the sample exhibit a variety of quasi-periodic and aperiodic outburst behavior. A characteristic feature of the photometric variation is that the objects are reddest when at maximum outburst. A subset of 102 objects were examined spectroscopically. Within this subset, 91% exhibited Balmer emission in at least one epoch, in some cases with spectacular spectral variability. The variability observed in the sample is consistent with the establishment and maintenance of the Be phenomenon.
dc.identifier.issn0004-6256
dc.identifier.urihttp://hdl.handle.net/1885/75114
dc.publisherUniversity of Chicago Press
dc.sourceAstronomical Journal
dc.subjectKeywords: Galaxies: individual (Large Magellanic Cloud); Stars: emission-line, Be; Stars: variables: other
dc.titleBlue Variable Stars From the MACHO Database. I. Photometry and Spectroscopy of the Large Magellanic Cloud Sample
dc.typeJournal article
local.bibliographicCitation.lastpage2044
local.bibliographicCitation.startpage2039
local.contributor.affiliationKeller, S C, Lawrence Livermore National Laboratory
local.contributor.affiliationBessell, Michael, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationCook, Kem H, Lawrence Livermore National Laboratory
local.contributor.affiliationGeha, M, Lawrence Livermore National Laboratory
local.contributor.affiliationSyphers, D, University of Chicago
local.contributor.authoremailu6900904@anu.edu.au
local.contributor.authoruidBessell, Michael, u6900904
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationMigratedxPub4472
local.identifier.citationvolume124
local.identifier.doi10.1086/342548
local.identifier.scopusID2-s2.0-0141643329
local.identifier.uidSubmittedByMigrated
local.type.statusPublished Version

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