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Paper: Analysis of High Resolution White Dwarf Spectra from the ESO SNIa Progenitor Survey (SPY)
Volume: 334, 14th European Workshop on White Dwarfs
Page: 655
Authors: Voss, B.; Koester, D.; SPY consortium
Abstract: We have analyzed some 830 white dwarf spectra from the SPY survey. The spectra were fitted with theoretical spectra derived from model atmospheres, yielding the so far largest sample of white dwarfs with known atmospheric parameters that were derived from high resolution spectra. Based on these data, the mass distribution of 632 DA white dwarfs is determined and found to show a somewhat lower peak compared to results from other recent surveys. Furthermore, we report on peculiar objects of different type that are found in the sample. 20 objects are found to have effective temperatures and gravities which place them inside the ZZ Ceti instability strip.
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