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Evolutionary Tracks

Published online by Cambridge University Press:  07 August 2017

Detlef Schönberner
Detlef Schönberner*
Affiliation:
Institut für Theoretische Physik und Sternwarte, University of Kiel, Germany

Extract

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It is now accepted without any doubts that the central stars of Planetary Nebulae (CPN) are rapidly evolving objects in the transition from the asymptotic giant branch (AGB) to the white-dwarf regime. After the pioneering study of Paczyński (1971) it has been demonstrated by Schönberner (1981) that Paczyński's calculations are too crude for the understanding of post-AGB evolution because the latter depends very sensitively on the detailed internal stellar structure, i.e. on the past AGB evolution. More precisely, the evolution of an AGB remnant is a function of the thermal-pulse cycle phase ϕ during which this remnant has been created by the planetary-nebula (PN) formation process. This has been shown by Schönberner (1979, 1983) and later fully been explored by Iben (1984).

Type
V. Planetary Nebulae Connection: Evolution to White Dwarfs
Information
Symposium - International Astronomical Union , Volume 155: Planetary Nebulae , 1993 , pp. 415 - 422
Copyright
Copyright © Kluwer 1993 

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