Hot Variable Stars in the SMC Cluster NGC 330

Details Hot Variable Stars in the SMC Cluster NGC 330 Hot Variable Stars in the SMC Cluster NGC 330

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aj....135.1350s&link_type=abstract

The Astronomical Journal, Volume 135, Issue 4, pp. 1350-1360 (2008).

Other

Galaxies: Star Clusters, Magellanic Clouds, Stars: Emission-Line, Be, Stars: Variables: Other

Scientific paper

In a sample of 150 hot stars in NGC 330, a SMC cluster containing a high fraction of Be stars, we searched for photometric variables using OGLE II data. At least one third of all stars are variable, with 38 being periodic. We found 27 pulsators (λ Eri variables), six eclipsing systems, two bursting sources, and several stars with unusual photometric behavior. Pulsations are present in ~30% of known Be stars, and they are long lived, lasting more than a decade. The strongest pulsators are associated with stars evolved from the main sequence.

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