To appear in the proceedings of IAU symposium 222: The
Interplay among Black Holes, Stars and ISM in Galactic Nuclei, held in
Gramado, Brazil, March 1-5 2004. Eds. Th. Storchi Bergmann, L.C. Ho &
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Abstract. I will discuss a few select aspects of the most common and best understood galactic-scale outflow - starburst-driven superwinds, focusing on winds from nuclear starburst galaxies. I will show that modern observations, in particular in the soft and hard X-ray bands, complement and reinforce the existing paradigm of superwinds as flows collectively driven by multiple SNe. The properties of the diffuse X-ray emission from dwarf starburst galaxies, LBOL ~ L* starbursts in spiral galaxies, and ULIRGS, are all consistent with superwind activity. Where appropriate, I contrast the physics of starburst-driven winds with poorly collimated winds from AGN, and discuss what we know of the role of LLAGN and Seyfert nuclei in starburst superwind galaxies.
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