Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-26T04:45:09.427Z Has data issue: false hasContentIssue false
  • English
  • Français

3D Hydrodynamical Simulations of a Galactic Fountain

Published online by Cambridge University Press:  12 April 2016

M.A. de Avillez ,
D.L. Berry  and
F.D. Kahn
M.A. de Avillez
Affiliation:
Departamento de Física, Universidade de Évora, R. Romão Ramalho 59, 7000 Évora, Portugal
D.L. Berry
Affiliation:
Departamento de Física, Universidade de Évora, R. Romão Ramalho 59, 7000 Évora, Portugal
F.D. Kahn
Affiliation:
Department of Physics and Astronomy, University of Manchester, Schuster Laboratory, Manchester M13 9PL, England

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.

Galactic fountains are thought to be responsible for the formation of the observed intermediate and high velocity clouds in the Galactic halo. Threedimensional simulations have been carried out to determine the evolution of the disk gas as it enters the fountain, cools and returns to the Galactic disk. The descending cold gas, headed by a shock, sweeps up the ascending flow, triggering the formation of an unstable layer where Rayleigh-Taylor instabilities grow, which may provoke the formation of the observed clouds.

Type
Part VIII High-Velocity Clouds, Galactic Halo Models, Observations of the LMC
Information
International Astronomical Union Colloquium , Volume 166: The Local Bubble and Beyond , 1997 , pp. 495 - 498
Copyright
Copyright © Springer-Verlag 1998

References

Allen, C.W., 1991, Astrophysical Quantities, The Athlone Press, London.Google Scholar
Avillez, M.A., 1997, Ph.D Thesis, University of Évora.Google Scholar
Berry, D.L., Avillez, M.A. & Kahn, F.D., 1997, these proceedings.Google Scholar
Berger, M.J. & Colella, P., 1989, J.Comput.Phys. 82, 64.CrossRefGoogle Scholar
Kahn, F.D., 1976, A&A 50, 145.Google Scholar
Kahn, F.D., 1997, these proceedings.Google Scholar
Kalberla, P.M.W., Pietz, J. & Kerp, J., 1997, these proceedings.Google Scholar
Normandeau, M., Taylor, A.R. & Dewdney, P.E., 1996, Nature 380, 687.CrossRefGoogle Scholar
Raymond, J.C., Cox, D.P. & Smith, B.W., 1976, ApJ 204, 290.CrossRefGoogle Scholar
Shapiro, P.R., Field, G.B., 1976, ApJ 205, 762.CrossRefGoogle Scholar
Tomisaka, K. & Ikeuchi, S., 1986, Publ. Astron. Soc. Japan 38, 697.Google Scholar