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Revealing the Location of the Mixing Layer in a Hot Bubble

Published online by Cambridge University Press:  08 August 2017

Guerrero M. A. ,
Fang X. ,
Chu Y.-H. ,
Toalá J. A.  and
Gruendl R. A.
Guerrero M. A.
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, E-18008 Granada, Spain email: mar@iaa.es
Fang X.
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, E-18008 Granada, Spain email: mar@iaa.es Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong email: fang@hku.hk
Chu Y.-H.
Affiliation:
Institute of Astronomy and Astrophysics, Academia Sinica (ASIAA), Taipei 10617, Taiwan email: yhchu@asiaa.sinica.edu.tw, toala@asiaa.sinica.edu.tw
Toalá J. A.
Affiliation:
Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, E-18008 Granada, Spain email: mar@iaa.es Institute of Astronomy and Astrophysics, Academia Sinica (ASIAA), Taipei 10617, Taiwan email: yhchu@asiaa.sinica.edu.tw, toala@asiaa.sinica.edu.tw
Gruendl R. A.
Affiliation:
Department of Astronomy, University of Illinois, 1002 West Green Street, Urbana, IL 61801, USA email: gruendl@astro.illinois.edu
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Abstract

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The fast stellar winds can blow bubbles in the circumstellar material ejected from previous phases of stellar evolution. These are found at different scales, from planetary nebulae (PNe) around stars evolving to the white dwarf stage, to Wolf-Rayet (WR) bubbles and up to large-scale bubbles around massive star clusters. In all cases, the fast stellar wind is shock-heated and a hot bubble is produced. Processes of mass evaporation and mixing of nebular material and heat conduction occurring at the mixing layer between the hot bubble and the optical nebula are key to determine the thermal structure of these bubbles and their evolution. In this contribution we review our current understanding of the X-ray observations of hot bubbles in PNe and present the first spatially-resolved study of a mixing layer in a PN.

Keywords

stars: windsoutflows(ISM:) planetary nebulae: individual (NGC 6543)ultraviolet: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S323: Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution , October 2016 , pp. 114 - 118
Copyright
Copyright © International Astronomical Union 2017 

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