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Preprint 11f/04


Spectral Analysis of Central Stars of PNe Interacting with the Interstellar Medium

T. Rauch (1,2), F. Kerber (3)

(1) Dr.-Remeis-Sternwarte, 96049 Bamberg, Germany
(2) Institut für Astronomie und Astrophysik, 72076 Tübingen, Germany
(3) ST-ECF, ESO, 85748 Garching, Germany

To be published in: 14th European Workshop on White Dwarfs, eds. D. Koester, S. Moehler, ASP Conf. Ser.

Abstract. Planetary Nebulae (PNe) are the result of heavy mass loss of the asymptotic giant branch (AGB) stars. They are understood in terms of Kwok's (1978) interacting-winds model as the product of the mass-loss history on the AGB and the central star (CS) evolution. Since the CS are close to the end of nuclear burning and at their hottest stage of evolution then, precise modeling of these pre-white dwarfs is a prerequisite in order to calculate reliable ionizing fluxes which are crucial input for the presently available 3D photoionization codes. In the framework of a systematic study of PNe which show evidence for an interaction with the ISM, we present a NLTE analysis of their CS.
 

Preprint (162 kb PDF file including figures)
Astrophysics (astro-ph): astro-ph/0410699


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