Mass-radius relations for massive white dwarf stars

We present detailed theoretical mass-radius relations for massive white dwarf stars with oxygen-neon cores. This work is motivated by recent observational evidence about the existence of white dwarf stars with very high surface gravities. Our results are based on evolutionary calculations that take...

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Detalles Bibliográficos
Autores principales: Althaus, Leandro Gabriel, García Berro, E., Isern, J., Córsico, Alejandro Hugo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2005
Materias:
Ciencias Astronómicas
Stars: evolution
Stars: fundamental parameters
Stars: white dwarfs
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83529
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83529
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: fundamental parameters
Stars: white dwarfs
spellingShingle Ciencias Astronómicas
Stars: evolution
Stars: fundamental parameters
Stars: white dwarfs
Althaus, Leandro Gabriel
García Berro, E.
Isern, J.
Córsico, Alejandro Hugo
Mass-radius relations for massive white dwarf stars
topic_facet Ciencias Astronómicas
Stars: evolution
Stars: fundamental parameters
Stars: white dwarfs
description We present detailed theoretical mass-radius relations for massive white dwarf stars with oxygen-neon cores. This work is motivated by recent observational evidence about the existence of white dwarf stars with very high surface gravities. Our results are based on evolutionary calculations that take into account the chemical composition expected from the evolutionary history of massive white dwarf progenitors. We present theoretical mass-radius relations for stellar mass values ranging from 1.06 to 1.30 M⊙ with a step of 0.02 Mȯ and effective temperatures from 150 000 K to ≈5000 K. A novel aspect predicted by our calculations is that the mass-radius relation for the most massive white dwarfs exhibits a marked dependence on the neutrino luminosity. Extensive tabulations for massive white dwarfs, accessible from our web site, are presented as well.
format Articulo
Articulo
author Althaus, Leandro Gabriel
García Berro, E.
Isern, J.
Córsico, Alejandro Hugo
author_facet Althaus, Leandro Gabriel
García Berro, E.
Isern, J.
Córsico, Alejandro Hugo
author_sort Althaus, Leandro Gabriel
title Mass-radius relations for massive white dwarf stars
title_short Mass-radius relations for massive white dwarf stars
title_full Mass-radius relations for massive white dwarf stars
title_fullStr Mass-radius relations for massive white dwarf stars
title_full_unstemmed Mass-radius relations for massive white dwarf stars
title_sort mass-radius relations for massive white dwarf stars
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/83529
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AT garciaberroe massradiusrelationsformassivewhitedwarfstars
AT isernj massradiusrelationsformassivewhitedwarfstars
AT corsicoalejandrohugo massradiusrelationsformassivewhitedwarfstars
bdutipo_str Repositorios
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