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.
Author details: | Christer Sandin, Matthias Steffen, Ralf Jacob, Detlef Schönberner, Ute Rühling, Wolf-Rainer HamannORCiDGND, Helge Tobias TodtORCiD |
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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): | Keine öffentliche Lizenz: Unter Urheberrechtsschutz |