Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...385..563d&link_type=abstract
Astronomy and Astrophysics, v.385, p.563-571 (2002)
Astronomy and Astrophysics
Astrophysics
38
Stars: Oscillations, Stars: Atmospheres, Line: Profiles, Stars: Variables: Beta Cep, Stars: Variables: Slowly Fulsating B Stars
Scientific paper
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.
Aerts Christine
de Ridder Joris
Dupret Marc-Antoine
Neuforge Corinne
Scuflaire Richard
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