Revealing the Location of the Mixing Layer in a Hot Bubble

M. A. Guerrero, X. Fang, Y. H. Chu, J. A. Toalá, R. A. Gruendl

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish (US)
Pages (from-to)114-118
Number of pages5
JournalProceedings of the International Astronomical Union
Issue numberS323
StatePublished - 2016


  • (ISM:) planetary nebulae: individual (NGC 6543)
  • outflows
  • stars: winds
  • ultraviolet: ISM

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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