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2008IBVS.5841....1D - IAU Inform. Bull. Var. Stars, 5841, 1 (2008/July-0)
Evidence for short-term variations in two O-type stars.
DE BECKER M., LINDER N. and RAUW G.
Abstract (from CDS):
Only a few O-type stars are known to display short-term (a fraction of a day) variations. Intense spectroscopic monitoring of the ON8V star HD 13268 revealed low amplitude variations with periods of several hours. In addition, observations of the SB1 system HD 15137 revealed variations on a time scale of a few hours. We consider these stars to be a good candidates for non radial pulsations, even though variations related to inhomogeneities in a circumstellar disk can not be rejected.
Abstract Copyright: ∼
Journal keyword(s): star: spectroscopy, stars: early-type, stars: variables
Simbad objects: 2
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