Reference : Evidence for short-term variations in two O-type stars
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/2906
Evidence for short-term variations in two O-type stars
English
De Becker, Michaël mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Sciences spatiales >]
Linder, Natacha [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) >]
Rauw, Grégor mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) - Sciences spatiales >]
Jul-2008
Information Bulletin on Variable Stars
Konkoly Observatory
5841
1
Yes
International
0374-0676
1587-2440
Budapest
Hongrie
[en] star: spectroscopy ; stars: early-type ; stars: variables
[en] 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.
http://hdl.handle.net/2268/2906
http://www.konkoly.hu/cgi-bin/IBVS?5841

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