Abstract
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.
This is a preview of subscription content, log in via an institution to check access.
Preview
Unable to display preview. Download preview PDF.
References
Allen, C.W., 1991, Astrophysical Quantities, The Athlone Press, London.
Avillez M.A., 1997, Ph.D Thesis, University of Évora.
Berry D.L., Avillez M.A. & Kahn F.D., 1997, these proceedings.
Berger M.J. & Colella P., 1989, J. Comput.Phys. 82, 64.
Kahn F.D., 1976, A&A 50, 145.
Kahn F.D., 1997, these proceedings.
Kalberla P.M.W., Pietz J. & Kerp J., 1997, these proceedings.
Normandeau M., Taylor A.R. & Dewdney P.E., 1996, Nature 380, 687.
Raymond J.C., Cox D.P. & Smith B.W., 1976, ApJ 204, 290.
Shapiro, P.R., Field G.B., 1976, ApJ 205, 762.
Tomisaka, K. & Ikeuchi S., 1986, Publ. Astron. Soc. Japan 38, 697.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1998 Springer-Verlag
About this paper
Cite this paper
de Avillez, M.A., Berry, D.L., Kahn, F.D. (1998). 3D hydrodynamical simulations of a galactic fountain. In: Breitschwerdt, D., Freyberg, M., Trümper, J. (eds) The Local Bubble and Beyond Lyman-Spitzer-Colloquium. Lecture Notes in Physics, vol 506. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0104771
Download citation
DOI: https://doi.org/10.1007/BFb0104771
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-64306-7
Online ISBN: 978-3-540-69726-8
eBook Packages: Springer Book Archive