X-Ray Plasma Temperature Distribution in the Wind of ζ Puppis

Hervé, Anthony; Rauw, Grégor; Nazé, Yaël

Reference : X-Ray Plasma Temperature Distribution in the Wind of ζ Puppis


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/139934

Title :	X-Ray Plasma Temperature Distribution in the Wind of ζ Puppis
Language :	English
Author, co-author :	Hervé, Anthony [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Sciences spatiales >]
	Rauw, Grégor [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Sciences spatiales >]
	Nazé, Yaël [Université de Liège - ULiège > > GAPHE : Astrophysique observationnelle (sol et espace) >]
Publication date :	1-Jan-2013
Main document title :	Astronomical Society of the Pacific Conference Series
Collection and collection volume :	465
Pages :	252
Peer reviewed :	No
On invitation :	No
Audience :	International
Event name :	Four Decades of Research on massive Stars
Event date :	du 11 au 15 juillet 2011
Event place (city) :	St-Michel-Des-Saints
Event country :	Canada
Abstract :	[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.
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/139934
Other URL :	http://cdsads.u-strasbg.fr/abs/2013ASPC..465..252H

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