Hostname: page-component-7479d7b7d-m9pkr Total loading time: 0 Render date: 2024-07-11T04:02:46.719Z Has data issue: false hasContentIssue false

Numerical Models of Supershell Dynamics

Published online by Cambridge University Press:  12 April 2016

Mordecai-Mark Mac Low
Affiliation:
JointInstitute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, CO 80309-0440
Michael L. Norman
Affiliation:
JointInstitute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, CO 80309-0440
Richard A. McCray
Affiliation:
JointInstitute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, CO 80309-0440

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Superbubbles play an important role in determining the state of the ISM in both spiral and irregular galaxies. We are modeling supershell dynamics in both homogeneous and stratified atmospheres using ZEUS, a 2-D hydrocode. We find that when a superbubble blows out of a Gaussian atmosphere, the cold, dense shell is not greatly accelerated. In addition, we believe that we observe the Vishniac overstability in radiative, decelerating shells.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1988

References

Bertschinger, E. 1986, Ap. J., 304, 154.CrossRefGoogle Scholar
Heiles, C. 1979, Ap. J., 229, 533.CrossRefGoogle Scholar
Heiles, C. 1984, Ap. J. Suppl., 55, 585.CrossRefGoogle Scholar
Ikeuchi, S. 1987, preprint.Google Scholar
MacDonald, J. and Bailey, M.E. 1981, M.N.R.A.S., 197, 995.CrossRefGoogle Scholar
Mac Low, M.-M., and McCray, R.A. 1987, Ap. J., submitted.Google Scholar
Mac Low, M.-M., Norman, M.L., and McCray, R.A. 1987, in preparation.Google Scholar
McCray, R.A. and Kafatos, M.C. 1987, Ap. J., 317, 190.CrossRefGoogle Scholar
Norman, M.L., and Winkler, K.-H.A. 1986, in Astrophysical Radiation Hydrodynamics. eds. Winkler, K-H.A. and Norman, M.L. (Dordrecht: Reidel).Google Scholar
Raymond, J.C., Cox, D.P., and Smith, B.W. 1976, Ap. J., 204, 290.CrossRefGoogle Scholar
Singh, K.P., Nousek, J.A., Burrows, D.N., and Garmire, G.P. 1987, Ap. J., 313, 185.CrossRefGoogle Scholar
Vishnaic, E.T. 1983, Ap. J., 274, 152.CrossRefGoogle Scholar
Weaver, R., McCray, R.A., Castor, J., Shapiro, P., and Moore, R. 1977, AP. J. 218, 377; erratum. 220, 742.CrossRefGoogle Scholar