Reference : X-Ray Plasma Temperature Distribution in the Wind of ζ Puppis
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/139934
X-Ray Plasma Temperature Distribution in the Wind of ζ Puppis
English
Hervé, Anthony [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Sciences spatiales >]
Rauw, Grégor mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Sciences spatiales >]
Nazé, Yaël mailto [Université de Liège - ULiège > > GAPHE : Astrophysique observationnelle (sol et espace) >]
1-Jan-2013
Astronomical Society of the Pacific Conference Series
465
252
No
No
International
Four Decades of Research on massive Stars
du 11 au 15 juillet 2011
St-Michel-Des-Saints
Canada
[en] Different scenarios try to explain the X-ray production in the O-type star wind (magnetic confinement, embedded shocks…) and their plasma temperature distribution. In this context, we have developed a new modeling code which computes synthetic spectra as a function of plasma temperature, abundances, and localization of the X-ray emitting shell in the wind. Then we combine several synthetic spectra in order to fit the observed high-resolution spectra. Our preliminary results on ζ Puppis reveal a non-porous wind as well as non-solar abundances for the CNO elements. More important, an extended region with a low temperature plasma begins to emit close to the star surface while small shells with hotter temperature plasmas emit farther in the wind.
Researchers
http://hdl.handle.net/2268/139934
http://cdsads.u-strasbg.fr/abs/2013ASPC..465..252H

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