TY - JOUR
T1 - A catalog of spectroscopically confirmed white dwarfs from the sloan digital sky survey data release 4
AU - Eisenstein, Daniel J.
AU - Liebert, James
AU - Harris, Hugh C.
AU - Kleinman, S. J.
AU - Nitta, Atsuko
AU - Silvestri, Nicole
AU - Anderson, Scott A.
AU - Barentine, J. C.
AU - Brewington, Howard J.
AU - Brinkmann, J.
AU - Harvanek, Michael
AU - Krzesiński, Jurek
AU - Neilsen, Eric H.
AU - Long, Dan
AU - Schneider, Donald P.
AU - Snedden, Stephanie A.
PY - 2006/11
Y1 - 2006/11
N2 - We present a catalog of 9316 spectroscopically confirmed white dwarfs from the Sloan Digital Sky Survey Data Release 4. We have selected the stars through photometric cuts and spectroscopic modeling, backed up by a set of visual inspections. About 6000 of the stars are new discoveries, roughly doubling the number of spectroscopically confirmed white dwarfs. We analyze the stars by performing temperature and surface gravity fits to grids of pure hydrogen and helium atmospheres. Among the rare outliers are a set of presumed helium-core DA white dwarfs with estimated masses below 0.3 M⊙, including two candidates that may be the lowest-mass yet found. We also present a list of 928 hot subdwarfs.
AB - We present a catalog of 9316 spectroscopically confirmed white dwarfs from the Sloan Digital Sky Survey Data Release 4. We have selected the stars through photometric cuts and spectroscopic modeling, backed up by a set of visual inspections. About 6000 of the stars are new discoveries, roughly doubling the number of spectroscopically confirmed white dwarfs. We analyze the stars by performing temperature and surface gravity fits to grids of pure hydrogen and helium atmospheres. Among the rare outliers are a set of presumed helium-core DA white dwarfs with estimated masses below 0.3 M⊙, including two candidates that may be the lowest-mass yet found. We also present a list of 928 hot subdwarfs.
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U2 - 10.1086/507110
DO - 10.1086/507110
M3 - Article
AN - SCOPUS:33845872847
SN - 0067-0049
VL - 167
SP - 40
EP - 58
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 1
ER -