White dwarf luminosity and mass functions from sloan digital sky survey spectra
- Autores
- DeGennaro, Steven; Von Hippel, Ted; Winget, D. E.; Kepler, S. O.; Nitta, Atsuko; Koester, Detlev; Althaus, Leandro Gabriel
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present the first phase in our ongoing work to use Sloan Digital Sky Survey (SDSS) data to create separate white dwarf (WD) luminosity functions (LFs) for two or more different mass ranges. In this paper, we determine the completeness of the SDSS spectroscopic WD sample by comparing a proper-motion selected sample of WDs from SDSS imaging data with a large catalog of spectroscopically determined WDs. We derive a selection probability as a function of a single color (g - i) and apparent magnitude (g) that covers the range -1.0 < g - i < 0.2 and 15 < g < 19.5. We address the observed upturn in log g for WDs with Teff≲ 12,000 K and offer arguments that the problem is limited to the line profiles and is not present in the continuum. We offer an empirical method of removing the upturn, recovering a reasonable mass function for WDs with Teff< 12,000 K. Finally, we present a WD LF with nearly an order of magnitude (3358) more spectroscopically confirmed WDs than any previous work.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata - Materia
-
Ciencias Astronómicas
Stars: luminosity function, mass function
White dwarfs - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/83461
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White dwarf luminosity and mass functions from sloan digital sky survey spectraDeGennaro, StevenVon Hippel, TedWinget, D. E.Kepler, S. O.Nitta, AtsukoKoester, DetlevAlthaus, Leandro GabrielCiencias AstronómicasStars: luminosity function, mass functionWhite dwarfsWe present the first phase in our ongoing work to use Sloan Digital Sky Survey (SDSS) data to create separate white dwarf (WD) luminosity functions (LFs) for two or more different mass ranges. In this paper, we determine the completeness of the SDSS spectroscopic WD sample by comparing a proper-motion selected sample of WDs from SDSS imaging data with a large catalog of spectroscopically determined WDs. We derive a selection probability as a function of a single color (g - i) and apparent magnitude (g) that covers the range -1.0 < g - i < 0.2 and 15 < g < 19.5. We address the observed upturn in log g for WDs with T<SUB>eff</SUB>≲ 12,000 K and offer arguments that the problem is limited to the line profiles and is not present in the continuum. We offer an empirical method of removing the upturn, recovering a reasonable mass function for WDs with T<SUB>eff</SUB>< 12,000 K. Finally, we present a WD LF with nearly an order of magnitude (3358) more spectroscopically confirmed WDs than any previous work.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1-9http://sedici.unlp.edu.ar/handle/10915/83461enginfo:eu-repo/semantics/altIdentifier/issn/0004-6256info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-6256/135/1/1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:41Zoai:sedici.unlp.edu.ar:10915/83461Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:41.988SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
White dwarf luminosity and mass functions from sloan digital sky survey spectra |
title |
White dwarf luminosity and mass functions from sloan digital sky survey spectra |
spellingShingle |
White dwarf luminosity and mass functions from sloan digital sky survey spectra DeGennaro, Steven Ciencias Astronómicas Stars: luminosity function, mass function White dwarfs |
title_short |
White dwarf luminosity and mass functions from sloan digital sky survey spectra |
title_full |
White dwarf luminosity and mass functions from sloan digital sky survey spectra |
title_fullStr |
White dwarf luminosity and mass functions from sloan digital sky survey spectra |
title_full_unstemmed |
White dwarf luminosity and mass functions from sloan digital sky survey spectra |
title_sort |
White dwarf luminosity and mass functions from sloan digital sky survey spectra |
dc.creator.none.fl_str_mv |
DeGennaro, Steven Von Hippel, Ted Winget, D. E. Kepler, S. O. Nitta, Atsuko Koester, Detlev Althaus, Leandro Gabriel |
author |
DeGennaro, Steven |
author_facet |
DeGennaro, Steven Von Hippel, Ted Winget, D. E. Kepler, S. O. Nitta, Atsuko Koester, Detlev Althaus, Leandro Gabriel |
author_role |
author |
author2 |
Von Hippel, Ted Winget, D. E. Kepler, S. O. Nitta, Atsuko Koester, Detlev Althaus, Leandro Gabriel |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Ciencias Astronómicas Stars: luminosity function, mass function White dwarfs |
topic |
Ciencias Astronómicas Stars: luminosity function, mass function White dwarfs |
dc.description.none.fl_txt_mv |
We present the first phase in our ongoing work to use Sloan Digital Sky Survey (SDSS) data to create separate white dwarf (WD) luminosity functions (LFs) for two or more different mass ranges. In this paper, we determine the completeness of the SDSS spectroscopic WD sample by comparing a proper-motion selected sample of WDs from SDSS imaging data with a large catalog of spectroscopically determined WDs. We derive a selection probability as a function of a single color (g - i) and apparent magnitude (g) that covers the range -1.0 < g - i < 0.2 and 15 < g < 19.5. We address the observed upturn in log g for WDs with T<SUB>eff</SUB>≲ 12,000 K and offer arguments that the problem is limited to the line profiles and is not present in the continuum. We offer an empirical method of removing the upturn, recovering a reasonable mass function for WDs with T<SUB>eff</SUB>< 12,000 K. Finally, we present a WD LF with nearly an order of magnitude (3358) more spectroscopically confirmed WDs than any previous work. Facultad de Ciencias Astronómicas y Geofísicas Instituto de Astrofísica de La Plata |
description |
We present the first phase in our ongoing work to use Sloan Digital Sky Survey (SDSS) data to create separate white dwarf (WD) luminosity functions (LFs) for two or more different mass ranges. In this paper, we determine the completeness of the SDSS spectroscopic WD sample by comparing a proper-motion selected sample of WDs from SDSS imaging data with a large catalog of spectroscopically determined WDs. We derive a selection probability as a function of a single color (g - i) and apparent magnitude (g) that covers the range -1.0 < g - i < 0.2 and 15 < g < 19.5. We address the observed upturn in log g for WDs with T<SUB>eff</SUB>≲ 12,000 K and offer arguments that the problem is limited to the line profiles and is not present in the continuum. We offer an empirical method of removing the upturn, recovering a reasonable mass function for WDs with T<SUB>eff</SUB>< 12,000 K. Finally, we present a WD LF with nearly an order of magnitude (3358) more spectroscopically confirmed WDs than any previous work. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/83461 |
url |
http://sedici.unlp.edu.ar/handle/10915/83461 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0004-6256 info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-6256/135/1/1 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf 1-9 |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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