Reference : The young open cluster NGC 6231: five years of investigations
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/16010
The young open cluster NGC 6231: five years of investigations
English
Sana, H. [Institut d'Astrophysique et de Géophysique, Liège University, Allée du 6 Aout 17, Bat. B5c, B-4000 Liège, Belgium) AB(Institut d'Astrophysique et de Géophysique, Liège University, Allée du 6 Aout 17, Bat. B5c, B-4000 Liège, Belgium) AC(Institut d'Astrophysique et de Géophysique, Liège University, Allée du 6 Aout 17, Bat. B5c, B-4000 Liège, Belgium]
Rauw, Grégor mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) - Sciences spatiales >]
Gosset, Eric mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) >]
1-Nov-2005
Massive Stars and High-Energy Emission in OB Associations
107-110
No
No
International
[en] In this contribution, we present an overview of the main results obtained by the Liège multiwavelength (in the X-ray and optical domains) campaign on the young open cluster NGC 6231. We probe the distribution of the O star properties, and especially their binary nature. In this regard, we revise the O-type binary fraction and we briefly discuss the distribution of the binary parameters. We then present the latest developments of the canonical L[SUB]X[/SUB]-L[SUB]bol[/SUB] relation. We discuss the causes of the observed deviations from this relation and of the X-ray variability among O-type stars. Probing the population of low mass pre-main sequence stars detected in the X-ray domain, we propose a scenario for the star formation history in NGC 6231.
http://hdl.handle.net/2268/16010
http://adsabs.harvard.edu/abs/2005mshe.work..107S

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