Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey

We investigate the sample of 1175 new nonmagnetic DA white dwarfs with the effective temperatures Teff ≥ 12 000 K, which were extracted from the Data Release 1 of the Sloan Digital Sky Survey. We determined masses, radii, and bolometric luminosities of stars in the sample. The above parameters were...

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Detalles Bibliográficos
Autores principales: Madej, J., Nalezyty, M., Althaus, Leandro Gabriel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2004
Materias:
Ciencias Astronómicas
Catalogs
Fundamental parameters
Stars
White dwarfs
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/93525
https://www.aanda.org/articles/aa/ref/2004/20/aagc042/aagc042.html
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-93525
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
Catalogs
Fundamental parameters
Stars
White dwarfs
spellingShingle Ciencias Astronómicas
Catalogs
Fundamental parameters
Stars
White dwarfs
Madej, J.
Nalezyty, M.
Althaus, Leandro Gabriel
Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey
topic_facet Ciencias Astronómicas
Catalogs
Fundamental parameters
Stars
White dwarfs
description We investigate the sample of 1175 new nonmagnetic DA white dwarfs with the effective temperatures Teff ≥ 12 000 K, which were extracted from the Data Release 1 of the Sloan Digital Sky Survey. We determined masses, radii, and bolometric luminosities of stars in the sample. The above parameters were derived from the effective temperatures Teff and surface gravities log g published in the DR1, and the new theoretical M − R relations for carbon-core and oxygen-core white dwarfs. Mass distribution of white dwarfs in this sample exhibits the peak at M = 0.562 M (carbon-core stars), and the tail towards higher masses. Both the shape of the mass distribution function and the empirical mass-radius relation are practically identical for white dwarfs with either pure carbon or pure oxygen cores.
format Articulo
Articulo
author Madej, J.
Nalezyty, M.
Althaus, Leandro Gabriel
author_facet Madej, J.
Nalezyty, M.
Althaus, Leandro Gabriel
author_sort Madej, J.
title Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey
title_short Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey
title_full Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey
title_fullStr Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey
title_full_unstemmed Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey
title_sort mass distribution of da white dwarfs in the first data release of the sloan digital sky survey
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/93525
https://www.aanda.org/articles/aa/ref/2004/20/aagc042/aagc042.html
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