期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 353, 期 2, 页码 601-623出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2004.08096.x
关键词
stars : early-type; stars : emission-line, Be; stars : fundamental parameters; Hertzsprung-Russell (HR) diagram; Magellanic Clouds
We present a catalogue of new spectral types for hot, luminous stars in the Small Magellanic Cloud (SMC). The catalogue contains 4161 objects, giving an order-of-magnitude increase in the number of SMC stars with published spectroscopic classifications. The targets are primarily B- and A-type stars (2862 and 853 objects respectively), with one Wolf-Rayet, 139 O-type and 306 FG stars, sampling the main sequence to similar tomid-B. The selection and classification criteria are described, and objects of particular interest are discussed, including UV-selected targets from the Ultraviolet Imaging Telescope (UIT) experiment, Be and B[e] stars, 'anomalous A supergiants' and composite-spectrum systems. We examine the incidence of Balmer-line emission, and the relationship between Hgamma equivalent width and absolute magnitude for BA stars.
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