Bubbles and Superbubbles: Observations and Theory

Details Bubbles and Superbubbles: Observations and Theory Bubbles and Superbubbles: Observations and Theory

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..250..341c&link_type=abstract

Massive Stars as Cosmic Engines, Proceedings of the International Astronomical Union, IAU Symposium, Volume 250, p. 341-354

Astronomy and Astrophysics

Astronomy

14

Ism: Bubbles, Ism: Structure, Circumstellar Matter, Stars: Mass Loss, Stars: Wolf-Rayet, Stars: Winds, Outflows, Supernova Remnants

Scientific paper

Massive stars inject energy into the surrounding medium and form shell structures. Bubbles are blown by fast stellar winds from individual massive stars, while superbubbles are blown by fast stellar winds and supernova explosions from groups of massive stars. Bubbles and superbubbles share a similar overall structure: a swept-up dense shell with an interior filled by low-density hot gas. Physical properties of a bubble/superbubble can be affected by magnetic field, thermal conduction, turbulent mixing, inhomogeneous ambient medium, etc. I will review recent progresses on observations and compare them to theoretical expectations for (1) swept-up dense shells, (2) hot interiors, and (3) interface between a dense shell and its interior hot gas.

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