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Institut für Astronomie und Astrophysik

Abteilung Astronomie

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Preprint 05/06

High-gravity central stars

Thomas Rauch

Institut für Astronomie und Astrophysik, Sand 1, 72076 Tübingen, Germany

To be published in: ASP Conference Series

Abstract. NLTE spectral analyses of high-gravity central stars by means of state-of-the-art model atmosphere techniques provide information about the precursor AGB stars. The hydrogen-deficient post-AGB stars allow investigations on the intershell matter which is apparently exhibited at the stellar surface. We summarize recent results from imaging, spectroscopy, and spectropolarimetry.

Key words: stars: abundances - stars: AGB and post-AGB - stars: atmospheres - stars: early-type - stars: evolution - stars: individual (KPD 0005+5106, LS V+4621, PG 0109+111, PG 1034+001) - white dwarfs - planetary nebulae: individual (Abell 36, Abell 78, EGB 5, He 2-36, K 1-16, LSS 1362, NGC 1360, NGC 2371, Sh 2-216)

Preprint (297 kb PDF file including figures)

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