Reference : Influence of non-adiabatic temperature variations on line profile variations of slowl...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/75415
Influence of non-adiabatic temperature variations on line profile variations of slowly rotating beta Cep stars and SPBs. I. Non-adiabatic eigenfunctions in the atmosphere of a pulsating star
English
Dupret, Marc-Antoine [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique >]
De Ridder, J. [Institut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, 3001 Heverlee, Belgium]
Neuforge, C. [ > > ]
Aerts, C. [Institut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, 3001 Heverlee, Belgium]
Scuflaire, Richard [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA) >]
1-Apr-2002
Astronomy and Astrophysics
EDP Sciences
385
563-571
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] STARS: OSCILLATIONS ; STARS: ATMOSPHERES ; LINE: PROFILES ; STARS: VARIABLES: BETA CEP ; STARS: VARIABLES: SLOWLY FULSATING B STARS
[en] In this study, we compute theoretical line profiles of a non-radially pulsating star, taking the non-adiabatic effects into account. These non-adiabatic effects are especially important in the atmosphere, where the spectral lines are formed, and must be accounted for. In this first paper of the series, we present a new treatment of the perturbed thermal and dynamical equations in the atmosphere of a pulsating star. We apply our formalism to the computation of non-adiabatic eigenfunctions in a typical beta Cephei star with low order p-modes and in a typical slowly pulsating B star with high-order g-modes.
http://hdl.handle.net/2268/75415
10.1051/0004-6361:20020193
http://adsabs.harvard.edu/abs/2002A%26A...385..563D

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