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2008AJ....135.1350S - Astron. J., 135, 1350-1360 (2008/April-0)
Hot variable stars in the SMC cluster NGC 330.
SCHMIDTKE P.C., CHOBANIAN J.B. and COWLEY A.P.
Abstract (from CDS):
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.
Abstract Copyright: ∼
Journal keyword(s): galaxies: star clusters - Magellanic Clouds - stars: emission-line, Be - stars: variables: other
VizieR on-line data: <Available at CDS (J/AJ/135/1350): table1.dat table2.dat>
CDS comments: In paragraph 4 AX J0049.4-7327 is a misprint for AX J0049.4-7323, and RX J0520-6921 is a misprint for RX J0520.5-6932.
Simbad objects: 158
