White dwarf mass distribution in the SDSS

Autores
Kepler, S. O.; Kleinman, S. J.; Nitta, A.; Koester, D.; Castanheira, B. G.; Giovannini, O.; Costa, A. F. M.; Althaus, Leandro Gabriel
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We determined masses for the 7167 DA and 507 DB white dwarf stars classified as single and non-magnetic in Data Release 4 of the Sloan Digital Sky Survey (SDSS). We obtained revised Teff and log g determinations for the most massive stars by fitting the SDSS optical spectra with a synthetic spectra grid derived from model atmospheres extending to log g= 10.0. We also calculate radii from evolutionary models and create volume-corrected mass distributions for our DA and DB samples. The mean mass for the DA stars brighter than g= 19 and hotter than Teff= 12 000 K is forumla. For the 150 DBs brighter than g= 19 and hotter than Teff= 16 000 K, we find forumla. It appears the mean mass for DB white dwarf stars may be significantly larger than that for DAs. We also report the highest mass white dwarf stars ever found, up to 1.33 Msolar.
Fil: Kepler, S. O.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Kleinman, S. J.. Subaru Telescope; Estados Unidos
Fil: Nitta, A.. Gemini Observatory; Estados Unidos
Fil: Koester, D.. Universität Kiel; Alemania
Fil: Castanheira, B. G.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Giovannini, O.. Universidade de Caxias do Sul; Brasil
Fil: Costa, A. F. M.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Althaus, Leandro Gabriel. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Materia
White dwarfs
Sloan Digital Sky Survey
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/41952
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/41952
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling White dwarf mass distribution in the SDSSKepler, S. O.Kleinman, S. J.Nitta, A.Koester, D.Castanheira, B. G.Giovannini, O.Costa, A. F. M.Althaus, Leandro GabrielWhite dwarfsSloan Digital Sky Surveyhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We determined masses for the 7167 DA and 507 DB white dwarf stars classified as single and non-magnetic in Data Release 4 of the Sloan Digital Sky Survey (SDSS). We obtained revised Teff and log g determinations for the most massive stars by fitting the SDSS optical spectra with a synthetic spectra grid derived from model atmospheres extending to log g= 10.0. We also calculate radii from evolutionary models and create volume-corrected mass distributions for our DA and DB samples. The mean mass for the DA stars brighter than g= 19 and hotter than Teff= 12 000 K is forumla. For the 150 DBs brighter than g= 19 and hotter than Teff= 16 000 K, we find forumla. It appears the mean mass for DB white dwarf stars may be significantly larger than that for DAs. We also report the highest mass white dwarf stars ever found, up to 1.33 Msolar.Fil: Kepler, S. O.. Universidade Federal do Rio Grande do Sul; BrasilFil: Kleinman, S. J.. Subaru Telescope; Estados UnidosFil: Nitta, A.. Gemini Observatory; Estados UnidosFil: Koester, D.. Universität Kiel; AlemaniaFil: Castanheira, B. G.. Universidade Federal do Rio Grande do Sul; BrasilFil: Giovannini, O.. Universidade de Caxias do Sul; BrasilFil: Costa, A. F. M.. Universidade Federal do Rio Grande do Sul; BrasilFil: Althaus, Leandro Gabriel. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaWiley Blackwell Publishing, Inc2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/41952Kepler, S. O.; Kleinman, S. J.; Nitta, A.; Koester, D.; Castanheira, B. G.; et al.; White dwarf mass distribution in the SDSS; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 375; 4; 12-2007; 1315-13240035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2006.11388.xinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/375/4/1315/1009674info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T10:54:12Zoai:ri.conicet.gov.ar:11336/41952instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-17 10:54:12.286CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv White dwarf mass distribution in the SDSS
title White dwarf mass distribution in the SDSS
spellingShingle White dwarf mass distribution in the SDSS
Kepler, S. O.
White dwarfs
Sloan Digital Sky Survey
title_short White dwarf mass distribution in the SDSS
title_full White dwarf mass distribution in the SDSS
title_fullStr White dwarf mass distribution in the SDSS
title_full_unstemmed White dwarf mass distribution in the SDSS
title_sort White dwarf mass distribution in the SDSS
dc.creator.none.fl_str_mv Kepler, S. O.
Kleinman, S. J.
Nitta, A.
Koester, D.
Castanheira, B. G.
Giovannini, O.
Costa, A. F. M.
Althaus, Leandro Gabriel
author Kepler, S. O.
author_facet Kepler, S. O.
Kleinman, S. J.
Nitta, A.
Koester, D.
Castanheira, B. G.
Giovannini, O.
Costa, A. F. M.
Althaus, Leandro Gabriel
author_role author
author2 Kleinman, S. J.
Nitta, A.
Koester, D.
Castanheira, B. G.
Giovannini, O.
Costa, A. F. M.
Althaus, Leandro Gabriel
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv White dwarfs
Sloan Digital Sky Survey
topic White dwarfs
Sloan Digital Sky Survey
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We determined masses for the 7167 DA and 507 DB white dwarf stars classified as single and non-magnetic in Data Release 4 of the Sloan Digital Sky Survey (SDSS). We obtained revised Teff and log g determinations for the most massive stars by fitting the SDSS optical spectra with a synthetic spectra grid derived from model atmospheres extending to log g= 10.0. We also calculate radii from evolutionary models and create volume-corrected mass distributions for our DA and DB samples. The mean mass for the DA stars brighter than g= 19 and hotter than Teff= 12 000 K is forumla. For the 150 DBs brighter than g= 19 and hotter than Teff= 16 000 K, we find forumla. It appears the mean mass for DB white dwarf stars may be significantly larger than that for DAs. We also report the highest mass white dwarf stars ever found, up to 1.33 Msolar.
Fil: Kepler, S. O.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Kleinman, S. J.. Subaru Telescope; Estados Unidos
Fil: Nitta, A.. Gemini Observatory; Estados Unidos
Fil: Koester, D.. Universität Kiel; Alemania
Fil: Castanheira, B. G.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Giovannini, O.. Universidade de Caxias do Sul; Brasil
Fil: Costa, A. F. M.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Althaus, Leandro Gabriel. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
description We determined masses for the 7167 DA and 507 DB white dwarf stars classified as single and non-magnetic in Data Release 4 of the Sloan Digital Sky Survey (SDSS). We obtained revised Teff and log g determinations for the most massive stars by fitting the SDSS optical spectra with a synthetic spectra grid derived from model atmospheres extending to log g= 10.0. We also calculate radii from evolutionary models and create volume-corrected mass distributions for our DA and DB samples. The mean mass for the DA stars brighter than g= 19 and hotter than Teff= 12 000 K is forumla. For the 150 DBs brighter than g= 19 and hotter than Teff= 16 000 K, we find forumla. It appears the mean mass for DB white dwarf stars may be significantly larger than that for DAs. We also report the highest mass white dwarf stars ever found, up to 1.33 Msolar.
publishDate 2007
dc.date.none.fl_str_mv 2007-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/41952
Kepler, S. O.; Kleinman, S. J.; Nitta, A.; Koester, D.; Castanheira, B. G.; et al.; White dwarf mass distribution in the SDSS; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 375; 4; 12-2007; 1315-1324
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/41952
identifier_str_mv Kepler, S. O.; Kleinman, S. J.; Nitta, A.; Koester, D.; Castanheira, B. G.; et al.; White dwarf mass distribution in the SDSS; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 375; 4; 12-2007; 1315-1324
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2006.11388.x
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/375/4/1315/1009674
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1843606191197913088
score 13.001348

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