arxiv: astro-ph/0610744 · v1 · submitted 2006-10-25 · 🌌 astro-ph

Spectral analyses of 16 DAO white dwarfs from the Sloan Digital Sky Survey

S. D. Huegelmeyer (1) , S. Dreizler (1) , T. Rauch (2) , J. Krzesinski (3) ((1) Institut fuer Astrophysik , Goettingen , Germany , (2) Institut fuer Astronomie und Astrophysik , Tuebingen

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(3) Apache Point Observatory New Mexico State University USA)

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classification 🌌 astro-ph

keywords digitaldwarfssloanspectralsurveywhiteanalysesanalysis

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We present a spectral analysis of 16 DAO white dwarfs from the Sloan Digital Sky Survey Data Release 4. With our NLTE H+He model grid, we derived photospheric parameters for these objects. We compare our new results to literature values and divide the DAOs into two distinct groups: post-AGB and EHB progenitors.

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Spectral analyses of 16 DAO white dwarfs from the Sloan Digital Sky Survey

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