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Spectral Analyses of DO White Dwarfs and PG1159 Stars from the Sloan Digital Sky Survey

S. D. Huegelmeyer·S. Dreizler·K. Werner·A. Nitta·S. J. Kleinman·J. Krzesinski
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Abstract

SDSS (DR1 and DR2) has recently proposed 7 new DO white dwarfs as well as 6 new PG1159 stars. This is a significant increase in the known number of DOs and PG1159 stars. Our spectral analyses provide stellar parameters which can then be used to derive constraints for the evolution of H-deficient white dwarfs. A comprehensive understanding of these objects is still severely hampered by low-number statistics.

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S. D. Huegelmeyer, S. Dreizler, K. Werner, A. Nitta, S. J. Kleinman, J. Krzesinski. 2005-01-13. Spectral Analyses of DO White Dwarfs and PG1159 Stars from the Sloan Digital Sky Survey. https://arxiv.org/abs/astro-ph/0501252

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