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Gravitational and Dynamical Instabilities of a Decelerating Plane-Parallel Slab of Finite Thickness

Published online by Cambridge University Press:  12 April 2016

G. Mark Voit
G. Mark Voit*
Affiliation:
Center for Astrophysics and Space Astronomy, and Joint, Institute for Laboratory Astrophysics University of Colorado Boulder, CO 80309 (, USA)

Abstract

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In order to explore how supernova blast waves might catalyze star formation, we investigate the stability of a slab of decelerating gas of finite thickness. We examine the early work in the field by Elmegreen and Lada and Elmegreen and Elmegreen and demonstrate that it is flawed. Contrary to their claims, blast waves can indeed accelerate the rate of star formation in the interstellar medium. Also, we demonstrate that in an incompressible fluid, the symmetric and antisymmetric modes in the case of zero acceleration transform continuously into Rayleigh-Taylor and gravity-wave modes as acceleration grows more important.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 101: Supernova Remnants and the Interstellar Medium , 1988 , pp. 509 - 512
Copyright
Copyright © Cambridge University Press 1988

References

Elmegreen, B.G., and Elmegreen, D.M. 1978, Ap. J., 220, 105.CrossRefGoogle Scholar
Elmegreen, B.G., and Lada, C.J. 1977, Ap. J., 214, 725.CrossRefGoogle Scholar
Vishniac, E.T. 1983, Ap. J., 274, 152.Google Scholar