The mode trapping properties of full DA white dwarf evolutionary models

An adiabatic, non-radial pulsation study of a 0.563 M⊙DA white dwarf model is presented on the basis of new evolutionary calculations performed in a self-consistent way with the predictions of time dependent element diffusion, nuclear burning and the history of the white dwarf progenitor. Emphasis i...

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Autores principales: Córsico, Alejandro Hugo, Althaus, Leandro Gabriel, Benvenuto, Omar Gustavo, Serenelli, Aldo Marcelo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2002
Materias:
Ciencias Astronómicas
Stars: evolution
Stars: interiors
Stars: oscillations
Stars: white dwarfs
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83572
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83572
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Stars: evolution
Stars: interiors
Stars: oscillations
Stars: white dwarfs
spellingShingle Ciencias Astronómicas
Stars: evolution
Stars: interiors
Stars: oscillations
Stars: white dwarfs
Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
Benvenuto, Omar Gustavo
Serenelli, Aldo Marcelo
The mode trapping properties of full DA white dwarf evolutionary models
topic_facet Ciencias Astronómicas
Stars: evolution
Stars: interiors
Stars: oscillations
Stars: white dwarfs
description An adiabatic, non-radial pulsation study of a 0.563 M⊙DA white dwarf model is presented on the basis of new evolutionary calculations performed in a self-consistent way with the predictions of time dependent element diffusion, nuclear burning and the history of the white dwarf progenitor. Emphasis is placed on the role played by the internal chemical stratification of these new models in the behaviour of the eigenmodes, and the expectations for the full g-spectrum of periods. The implications for the mode trapping properties are discussed at length. In this regard, we find that, for high periods, the viability of mode trapping as a mode selection mechanism is markedly weaker for our models, as compared with the situation in which the hydrogen-helium transition region is treated assuming equilibrium diffusion in the trace element approximation.
format Articulo
Articulo
author Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
Benvenuto, Omar Gustavo
Serenelli, Aldo Marcelo
author_facet Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
Benvenuto, Omar Gustavo
Serenelli, Aldo Marcelo
author_sort Córsico, Alejandro Hugo
title The mode trapping properties of full DA white dwarf evolutionary models
title_short The mode trapping properties of full DA white dwarf evolutionary models
title_full The mode trapping properties of full DA white dwarf evolutionary models
title_fullStr The mode trapping properties of full DA white dwarf evolutionary models
title_full_unstemmed The mode trapping properties of full DA white dwarf evolutionary models
title_sort mode trapping properties of full da white dwarf evolutionary models
publishDate 2002
url http://sedici.unlp.edu.ar/handle/10915/83572
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