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Chimneys in the starburst galaxy M 82

Published online by Cambridge University Press:  25 May 2016

Matt P. Redman ,
K. A. Wills ,
T.W.B. Muxlow  and
A. Pedlar
Matt P. Redman
Affiliation:
Department of Physics & Astronomy, University of Manchester, Manchester M20 1QE, UK
K. A. Wills
Affiliation:
Department of Physics & Astronomy, University of Manchester, Manchester M20 1QE, UK
T.W.B. Muxlow
Affiliation:
Department of Physics & Astronomy, University of Manchester, Manchester M20 1QE, UK
A. Pedlar
Affiliation:
Department of Physics & Astronomy, University of Manchester, Manchester M20 1QE, UK

Abstract

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A new radio image of the core of the starburst galaxy M82 is presented. A pair of probable galactic chimneys are evident. Such structures have been conjectured to result when a giant shell of ionized gas breaks out of the dense plane of a galaxy and ejects hot gas into the halo. In M 82, the starburst activity drives a galactic superwind and theoretical models of this process require a knowledge of the kinematics of the hot gas in the core of the galaxy. The results presented here imply that the ejection of material into the base of the superwind does not occur smoothly over the starburst region; instead, very localised venting of the hot gas appears to be taking place.

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. 752 - 753
Copyright
Copyright © Astronomical Society of the Pacific 1999 

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