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dc.date.accessioned 2019-11-05T17:52:33Z
dc.date.available 2019-11-05T17:52:33Z
dc.date.issued 2013
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/85002
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. en
dc.language en es
dc.subject catalogs es
dc.subject magnetic fields es
dc.subject stars: luminosity function, mass function es
dc.subject surveys es
dc.subject white dwarfs es
dc.title SDSS DR7 white dwarf catalog en
dc.type Articulo es
sedici.identifier.other doi:10.1088/0067-0049/204/1/5 es
sedici.identifier.other eid:2-s2.0-84872359702 es
sedici.identifier.issn 0067-0049 es
sedici.creator.person Kleinman, S. J. es
sedici.creator.person Kepler, S. O. es
sedici.creator.person Koester, D. es
sedici.creator.person Pelisoli, Ingrid es
sedici.creator.person Peçanha, Viviane es
sedici.creator.person Nitta, A. es
sedici.creator.person Costa, J. E. S. es
sedici.creator.person Krzesinski, J. es
sedici.creator.person Dufour, P. es
sedici.creator.person Lachapelle, F. R. es
sedici.creator.person Bergeron, P. es
sedici.creator.person Yip, Ching Wa es
sedici.creator.person Harris, Hugh C. es
sedici.creator.person Eisenstein, Daniel J. es
sedici.creator.person Althaus, Leandro Gabriel es
sedici.creator.person Córsico, Alejandro Hugo es
sedici.subject.materias Ciencias Astronómicas es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle The Astrophysical Journal, Supplement Series es
sedici.relation.journalVolumeAndIssue vol. 204, no. 1 es
sedici.rights.sherpa * Color: green * Pre-print del autor: si * Post-print del autor: si * Versión de editor/PDF:si * Condiciones: >>On any website, arXiv, scientific social networks (except Research Gate) or non-commercial open access repository. >>Publisher's version/PDF may be used on any website or authors' institutional repository >>Publisher copyright and source must be acknowledged >>Must link to publisher version >>Publisher's version/PDF may be used >>Authors depositing in arXiv must they choose the first licence statement offered by arXiv when uploading their article � a "non-exclusive licence to distribute" >>Publisher last contacted on 10/02/2016 >>Publisher last reviewed on 15/08/2017 * Link a Sherpa: http://sherpa.ac.uk/romeo/issn/0067-0049/es/


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)