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dc.contributor.author
Kleinman, S. J.
dc.contributor.author
Kepler, S. O.
dc.contributor.author
Koester, D.
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Pelisoli, Ingrid
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Pecanha, Viviane
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Nitta, A.
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Costa, J. E. S.
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Krzesinski, J.
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Dufour, P.
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Lachapelle, F. R.
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Bergeron, P.
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Yip, Ching Wa
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Harris, Hugh C.
dc.contributor.author
Eisenstein, Daniel J.
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Althaus, Leandro Gabriel
dc.contributor.author
Corsico, Alejandro Hugo
dc.date.available
2016-11-30T14:01:23Z
dc.date.issued
2013-01
dc.identifier.citation
Kleinman, S. J. ; Kepler, S. O. ; Koester, D.; Pelisoli, Ingrid ; Pecanha, Viviane ; et al.; SDSS DR7 White Dwarf Catalog; Iop Publishing; Astrophysical Journal Supplement Series; 204; 1; 1-2013; 5-19
dc.identifier.issn
0067-0049
dc.identifier.uri
http://hdl.handle.net/11336/8485
dc.description.abstract
We present a new catalog of spectroscopically confirmed white dwarf stars from the Sloan Digital Sky Survey (SDSS) Data Release 7 spectroscopic catalog. We find 20,407 white dwarf spectra, representing 19,712 stars, and provide atmospheric model fits to 14,120 DA and 1011 DB white dwarf spectra from 12,843 and 923 stars, respectively. These numbers represent more than a factor of two increase in the total number of white dwarf stars from the previous SDSS white dwarf catalogs based on DR4 data. Our distribution of subtypes varies from previous catalogs
due to our more conservative, manual classifications of each star in our catalog, supplementing our automatic fits. In particular, we find a large number of magnetic white dwarf stars whose small Zeeman splittings mimic increased Stark broadening that would otherwise result in an overestimated log g if fit as a non-magnetic white dwarf. We calculate mean DA and DB masses for our clean, non-magnetic sample and find the DB mean mass is statistically larger than that for the DAs.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Iop Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Catalogs
dc.subject
Mass Function
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White Dwarfs
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Magnetic Fields
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Luminosity Function
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Stars
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
SDSS DR7 White Dwarf Catalog
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-11-18T15:11:29Z
dc.journal.volume
204
dc.journal.number
1
dc.journal.pagination
5-19
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Kleinman, S. J. . Gemini Observatory; Estados Unidos
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Fil: Kepler, S. O. . Universidade Federal do Rio Grande do Sul; Brasil
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Fil: Koester, D.. Universitat Kiel. Institut fur Theoretische Physik und Astrophysik; Alemania
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Fil: Pelisoli, Ingrid . Universidade Federal do Rio Grande do Sul; Brasil
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Fil: Pecanha, Viviane . Universidade Federal do Rio Grande do Sul; Brasil
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Fil: Nitta, A.. Gemini Observatory; Estados Unidos
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Fil: Costa, J. E. S. . Universidade Federal do Rio Grande do Sul; Brasil
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Fil: Krzesinski, J.. Pedagogical University of Cracow. Mt. Suhora Observatory.; Polonia
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Fil: Dufour, P.. University Of Montreal; Canadá
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Fil: Lachapelle, F. R. . University Of Montreal; Canadá
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Fil: Bergeron, P.. University Of Montreal; Canadá
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Fil: Yip, Ching Wa. University Johns Hopkins; Estados Unidos
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Fil: Harris, Hugh C.. United States Naval Observatory; Estados Unidos
dc.description.fil
Fil: Eisenstein, Daniel J.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
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Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
dc.description.fil
Fil: Corsico, Alejandro Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
dc.journal.title
Astrophysical Journal Supplement Series
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/0067-0049/204/1/5
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0067-0049/204/1/5/meta;jsessionid=89A3D7C94CE119D38907BD7A09D2BF41.c2.iopscience.cld.iop.org
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