Overshooting and semiconvection: structural changes and asteroseismic signatures

Noels-Grötsch, Arlette; Montalban Iglesias, Josefa; Miglio, Andrea; Godart, Mélanie; Ventura, P.

doi:10.1007/s10509-009-0203-7

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Overshooting and semiconvection: structural changes and asteroseismic signatures

Noels-Grötsch, Arlette; Montalban Iglesias, Josefa; Miglio, Andrea et al.

2010 • In Astrophysics and Space Science, 328, p. 227-236

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https://hdl.handle.net/2268/34016

DOI
10.1007/s10509-009-0203-7

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Keywords :

Stellar structure; Overshooting; Semiconvection; Asteroseismology

Abstract :

[en] Overshooting and semiconvection are two poorly known mechanisms which affect the extent and the efficiency of chemical mixing outside classical convection zones in stars. We discuss the uncertainties and the inferences of those processes in main sequence stars burning hydrogen in a convective core. We then focus on the asteroseismic signatures of partially or fully mixed zones surrounding the convective core, through the detailed shape of the induced chemical composition profile. We emphasize the potential power of asteroseismology to determine the internal structure of stars and thus to help us understand the physical processes at work inside the stars.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Noels-Grötsch, Arlette ; Institut d’Astrophysique et de Géophysique, University of Liège

Montalban Iglesias, Josefa ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie

Miglio, Andrea ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie

Godart, Mélanie ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie

Ventura, P.; Osservatorio Astronomico di Roma

Language :

English

Title :

Overshooting and semiconvection: structural changes and asteroseismic signatures

Publication date :

01 July 2010

Journal title :

Astrophysics and Space Science

ISSN :

0004-640X

eISSN :

1572-946X

Publisher :

Springer Science & Business Media B.V., Dordrecht, Netherlands

Volume :

328

Pages :

227-236

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://adsabs.harvard.edu/abs/2010Ap%26SS.328..227N

Available on ORBi :

since 25 February 2011

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