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Superwinds and the nature of starburst galaxies

Published online by Cambridge University Press:  25 May 2016

Matthew D. Lehnert
Matthew D. Lehnert*
Affiliation:
Sterrewacht Leiden, Rijksuniversiteit Leiden, Postbus 9513, NL-2300 RA Leiden, Nederland
*
1Present address: Max-Plank-Institut für extraterrestrische Physik, Postfach 1603, D-85740 Garching, Germany

Abstract

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I discuss the observational evidence that starburst galaxies are able to drive galactic-scale outflows ('superwinds') and then argue generally that superwinds must have had an important role in galaxy evolution. To explore the role of feedback from massive stars, I review results suggesting that starbursts seem to obey a limiting IR surface brightness of about 1011 L⊙ kpc−2, corresponding to a maximum star-formation rate of about 45M⊙ yr−1kpc−2 for a ‘normal’ initial mass function. I conclude by discussing the role of winds in determining this upper-limit and discuss recent results implying that winds might actually escape the galactic potentials in which they reside.

Type
Part 6. Starbursts in normal and active galaxies: their effects on the ISM and on chemical evolution
Information
Symposium - International Astronomical Union , Volume 193: Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies , 1999 , pp. 645 - 652
Copyright
Copyright © Astronomical Society of the Pacific 1999 

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