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

Keller, S C; Bessell, Michael; Cook, Kem H; Geha, M; Syphers, D

Description

We 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...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
URI: http://hdl.handle.net/1885/75114
Source: Astronomical Journal
DOI: 10.1086/342548

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