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dc.contributor.authorKepler, Souza Oliveirapt_BR
dc.contributor.authorPelisoli, Ingrid Domingospt_BR
dc.contributor.authorKoester, Detlevpt_BR
dc.contributor.authorOurique, Gustavopt_BR
dc.contributor.authorRomero, Alejandra Danielapt_BR
dc.contributor.authorReindl, Nicolept_BR
dc.contributor.authorKleinman, Scot Jamespt_BR
dc.contributor.authorEisenstein, Daniel, J.pt_BR
dc.contributor.authorValois, Adeilton Dean Marquespt_BR
dc.contributor.authorAmaral, Larissa Antunespt_BR
dc.date.accessioned2016-05-06T02:22:31Zpt_BR
dc.date.issued2016pt_BR
dc.identifier.issn0035-8711pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/140429pt_BR
dc.description.abstractWe report the discovery of 6576 new spectroscopically confirmed white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. We obtain Teff, log g and mass for hydrogen atmospherewhite dwarf stars (DAs) and helium atmospherewhite dwarf stars (DBs), estimate the calcium/helium abundances for the white dwarf stars with metallic lines (DZs) and carbon/helium for carbon-dominated spectra (DQs). We found one central star of a planetary nebula, one ultracompact helium binary (AM CVn), one oxygen line-dominated white dwarf, 15 hot DO/PG1159s, 12 new cataclysmic variables, 36 magnetic white dwarf stars, 54 DQs, 115 helium-dominated white dwarfs, 148 white dwarf + main-sequence star binaries, 236 metal-polluted white dwarfs, 300 continuum spectra DCs, 230 hot subdwarfs, 2936 new hydrogen-dominated white dwarf stars, and 2675 cool hydrogen-dominated subdwarf stars. We calculate the mass distribution of all 5883 DAs with S/N ≥ 15 in DR12, including the ones in DR7 and DR10, with an average S/N = 26, corrected to the 3D convection scale, and also the distribution after correcting for the observed volume, using 1/Vmax.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMonthly notices of the Royal Astronomical Society. Oxford. Vol. 455, no. 4 (Feb. 2016), p. 3413-3423pt_BR
dc.rightsOpen Accessen
dc.subjectCataloguesen
dc.subjectCatalogos astronomicospt_BR
dc.subjectAnãs brancaspt_BR
dc.subjectStars: magnetic fielden
dc.subjectSubdwarfsen
dc.subjectWhite dwarfsen
dc.titleNew white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12pt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000985433pt_BR
dc.type.originEstrangeiropt_BR


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