Reference : Temperature gradients in the core overshooting region

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/110963

Title :	Temperature gradients in the core overshooting region
Language :	English
Author, co-author :	Godart, Mélanie [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie]
Publication date :	1-Jun-2007
Journal title :	Communications in Asteroseismology
Publisher :	Verlag der Österreichischen Akademie der Wissenschaften
Volume :	150
Pages :	185
Audience :	International
ISSN :	1021-2043
City :	Wien
Country :	Austria
Abstract :	[en] The term overshooting is used to describe two situations: the chemical mixing induced by the convective elements crossing the boundary given by Schwarzschild's criterion (overshooting), or, in addition to that mixing, the change in the temperature gradient in the overshoot region when convection is efficient enough (penetration; Zahn 1991). We show that for models with the same mass of the mixed central region the oscillation frequencies are sensitive to the kind of overshoot treatment adopted. This effect is especially obvious for SPB stars and is high enough to be detected by CoRoT long run observations. That would imply the possibility of disentangling penetration from overshooting.
Permalink :	http://hdl.handle.net/2268/110963
DOI :	10.1553/cia150s185
Other URL :	http://adsabs.harvard.edu/abs/2007CoAst.150..185G

	File(s) associated to this reference
	Fulltext file(s): File Commentary Version Size Access Restricted access temperature_gradients.pdf Publisher postprint 122.65 kB Request copy

All documents in ORBi are protected by a user license.

 

© ULg Library Network |  Feedback |  ORBi legal notices

Dspace v1.5