Updated Evolutionary Sequences for Hydrogen-deficient White Dwarfs

We present a set of full evolutionary sequences for white dwarfs with hydrogen-deficient atmospheres. We take into account the evolutionary history of the progenitor stars, all the relevant energy sources involved in the cooling, element diffusion in the very outer layers, and outer boundary conditi...

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Detalles Bibliográficos
Autores principales: Camisassa, María Eugenia, Althaus, Leandro Gabriel, Rohrmann, Rene Daniel, García Berro, Enrique, Torres, Santiago, Córsico, Alejandro Hugo, Wachlin, Felipe Carlos
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Astronómicas
Stars: evolution
Stars: interiors
Stars: white dwarfs
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/93809
http://iopscience.iop.org/article/10.3847/1538-4357/aa6797/meta
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-93809
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: white dwarfs
spellingShingle Ciencias Astronómicas
Stars: evolution
Stars: interiors
Stars: white dwarfs
Camisassa, María Eugenia
Althaus, Leandro Gabriel
Rohrmann, Rene Daniel
García Berro, Enrique
Torres, Santiago
Córsico, Alejandro Hugo
Wachlin, Felipe Carlos
Updated Evolutionary Sequences for Hydrogen-deficient White Dwarfs
topic_facet Ciencias Astronómicas
Stars: evolution
Stars: interiors
Stars: white dwarfs
description We present a set of full evolutionary sequences for white dwarfs with hydrogen-deficient atmospheres. We take into account the evolutionary history of the progenitor stars, all the relevant energy sources involved in the cooling, element diffusion in the very outer layers, and outer boundary conditions provided by new and detailed non-gray white dwarf model atmospheres for pure helium composition. These model atmospheres are based on the most up-to-date physical inputs. Our calculations extend down to very low effective temperatures, of ∼2500 K, provide a homogeneous set of evolutionary cooling tracks that are appropriate for mass and age determinations of old hydrogen-deficient white dwarfs, and represent a clear improvement over previous efforts, which were computed using gray atmospheres.
format Articulo
Preprint
author Camisassa, María Eugenia
Althaus, Leandro Gabriel
Rohrmann, Rene Daniel
García Berro, Enrique
Torres, Santiago
Córsico, Alejandro Hugo
Wachlin, Felipe Carlos
author_facet Camisassa, María Eugenia
Althaus, Leandro Gabriel
Rohrmann, Rene Daniel
García Berro, Enrique
Torres, Santiago
Córsico, Alejandro Hugo
Wachlin, Felipe Carlos
author_sort Camisassa, María Eugenia
title Updated Evolutionary Sequences for Hydrogen-deficient White Dwarfs
title_short Updated Evolutionary Sequences for Hydrogen-deficient White Dwarfs
title_full Updated Evolutionary Sequences for Hydrogen-deficient White Dwarfs
title_fullStr Updated Evolutionary Sequences for Hydrogen-deficient White Dwarfs
title_full_unstemmed Updated Evolutionary Sequences for Hydrogen-deficient White Dwarfs
title_sort updated evolutionary sequences for hydrogen-deficient white dwarfs
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/93809
http://iopscience.iop.org/article/10.3847/1538-4357/aa6797/meta
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bdutipo_str Repositorios
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