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High-gravity central stars

Published online by Cambridge University Press:  15 December 2006

Thomas Rauch
Thomas Rauch
Affiliation:
Institut für Astronomie und Astrophysik, Universität Tübingen, Germany email: [email protected]
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Abstract

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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.

Keywords

stars: abundancesstars: AGB and post-AGBstars: atmospheresstars: early-typestars: evolutionstars: individual (KPD 0005+5106, LS V+4621, PG 0109+111, PG 1034+001)white dwarfsplanetary nebulae: individual (Abell 36, Abell 78, EGB 5, He 2-36, K 1-16, LSS 1362, NGC 1360, NGC 2371, Sh 2-216)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S234: Planetary Nebulae in our Galaxy and Beyond , April 2006 , pp. 131 - 138
Copyright
© 2006 International Astronomical Union