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Magnetic White Dwarf Stars in the Sloan Digital Sky Survey
S. O. Kepler, Ingrid Pelisoli, Stefan Jordan +10
To obtain a better statistics on the occurrence of magnetism among white dwarfs, we searched the spectra of the hydrogen atmosphere white dwarf stars (DAs) in the Data Release 7 of…
SDSS DR7 White Dwarf Catalog
S. J. Kleinman, S. O. Kepler, D. Koester +13
We present a new catalog of spectroscopically-confirmed white dwarf stars from the Sloan Digital Sky Survey Data Release 7 spectroscopic catalog. We find 20,407 white dwarf spectra…
Monte Carlo simulations of the luminosity function of hot white dwarfs
S. Torres, E. García-Berro, J. Krzesinski +1
We present a detailed Monte Carlo simulation of the population of the hot branch of the white dwarf luminosity function. We used the most up-to-date stellar evolutionary models and…
Common Proper Motion Wide White Dwarf Binaries Selected From The Sloan Digital Sky Survey
Jeff J. Andrews, Marcel A. Agüeros, Krzysztof Belczynski +3
Wide binaries made up of two white dwarfs (WDs) receive far less attention than their tight counterparts. However, our tests using the binary population synthesis code {\tt StarTra…
Empirical Determination of Convection Parameters in White Dwarfs I : Whole Earth Telescope Observations of EC14012-1446
J. L. Provencal, M. H. Montgomery, A. Kanaan +55
We report on analysis of 308.3 hrs of high speed photometry targeting the pulsating DA white dwarf EC14012-1446. The data were acquired with the Whole Earth Telescope (WET) during…
The ELM Survey. IV. 24 White Dwarf Merger Systems
Mukremin Kilic, Warren R. Brown, Carlos Allende Prieto +4
We present new radial velocity and X-ray observations of extremely low-mass (ELM, 0.2 Msol) white dwarf candidates in the Sloan Digital Sky Survey (SDSS) Data Release 7 area. We id…