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Contributions of Supernovae to the Chemical and Dynamical Evolution of the ISM

Published online by Cambridge University Press:  12 April 2016

Virginia Trimble
Virginia Trimble*
Affiliation:
Department of Physics, University of California, Irvine CA 92717USA and Astronomy Program, University of Maryland, College Park MD 20742USA

Abstract:

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Supernovae of Types Ia, Ib, and II contribute, on average, 1051 ergs of turbulent energy to the interstellar medium for each 2 Mo of new heavy elements. This permits a dynamical extension of the homogeneous one-zone model (with constant IMF and instantaneous recycling) that is familiar from studies of galactic chemical evolution. Chemically possible scenarios predict current kinetic energy inputs ranging from 1039 to 1040 erg yr−1 per solar mass of interstellar gas. Dynamical studies might narrow this.

Type
VII. The Structure of the Interstellar Medium
Information
International Astronomical Union Colloquium , Volume 120: Structure and Dynamics of the Interstellar Medium , 1989 , pp. 530 - 535
Copyright
Copyright © Springer-Verlag 1989

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