Astronomy and Astrophysics – Astrophysics – Galaxy Astrophysics
Scientific paper
2009-01-14
Astronomy and Astrophysics
Astrophysics
Galaxy Astrophysics
6 pages, 4 figures, proceedings to "Star-forming Dwarf Galaxies: Ariadne's Thread in the Cosmic Labyrinth", Crete, 2008
Scientific paper
Galactic winds in dwarf galaxies are driven by the energy released by supernova explosions and stellar winds following an intense episode of star formation, which create an over-pressured cavity of hot gas. Although the luminosity of the star formation episode and the mass of the galaxy play a key role in determining the occurrence of the galactic winds and the fate of the freshly produced metals, other parameters play an equally important role. In this contribution we address the following questions (i) What is the late evolution of superbubbles and what is the final fate of the superbubble cavities? (ii) How does the multi-phase nature of the ISM, in particular the coexistence of hot gas with embedded clouds, affect the development of galactic winds? (iii) What is the relation between the flattening of a galaxy and the development of bipolar galactic winds?
Anelli Dalila
Hensler Gerhard
Recchi Simone
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