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The role of heat conduction to the formation of [WC]-type planetary nebulae

  • X-ray observations of young Planetary Nebulæ (PNe) have revealed diffuse emission in extended regions around both H-rich and H-deficient central stars. In order to also repro-duce physical properties of H-deficient objects, we have, at first, extended our time-dependent radiation-hydrodynamic models with heat conduction for such conditions. Here we present some of the important physical concepts, which determine how and when a hot wind-blown bubble forms. In this study we have had to consider the, largely unknown, evolution of the CSPN, the slow (AGB) wind, the fast hot-CSPN wind, and the chemical composition. The main conclusion of our work is that heat conduction is needed to explain X-ray properties of wind-blown bubbles also in H-deficient objects.

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Author details:Christer Sandin, Matthias Steffen, Ralf Jacob, Detlef Schönberner, Ute Rühling, Wolf-Rainer HamannORCiDGND, Helge Tobias TodtORCiD
URN:urn:nbn:de:kobv:517-opus4-413702
DOI:https://doi.org/10.25932/publishup-41370
ISSN:1866-8372
Title of parent work (English):Proceedings of the International Astronomical Union
Publication series (Volume number):Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (582)
Publication type:Postprint
Language:English
Date of first publication:2019/02/07
Publication year:2011
Publishing institution:Universität Potsdam
Release date:2019/02/07
Tag:conduction; hydrodynamics; planetary nebulae: general
Issue:582
Number of pages:2
First page:494
Last Page:495
Source:Proceedings of the International Astronomical Union 7 (2011) 2, Symposium No. 283 (Planetary Nebulae an Eye to the Future), pp. 494–495 DOI 10.1017/S1743921312012094
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät
DDC classification:5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften
Peer review:Referiert
Publishing method:Open Access
Grantor:Cambridge University Press (CUP)
License (German):License LogoKeine öffentliche Lizenz: Unter Urheberrechtsschutz
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