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Two-dimensional calculations of tightly wound spiral shocks

Published online by Cambridge University Press:  04 August 2017

A. H. Nelson ,
T. Johns  and
M. Tosa
A. H. Nelson
Affiliation:
Applied Mathematics, University College, Cardiff, U.K.
T. Johns
Affiliation:
Applied Mathematics, University College, Cardiff, U.K.
M. Tosa
Affiliation:
Tohoku University, Sendai, Japan

Extract

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Recently it has been possible to perform computer calculations with sufficiently high resolution to obtain the response of the gas in galaxies to a tightly wound spiral potential due to a stellar density wave. Previously for pitch angles ~ 10° the problem had to be simplified using the tightly wound approximation, with gradients parallel to the arms neglected compared to perpendicular gradients, yielding a quasi-1-dimensional calculation. This paper reports the early results of a 2-dimensional calculation, and compares them with the 1-dimensional results.

Type
PART III: Dynamics and Evolution
Information
Symposium - International Astronomical Union , Volume 106: The Milky Way Galaxy , 1985 , pp. 533 - 534
Copyright
Copyright © Reidel 1985 

References

Nelson, A.H. and Matsuda, T.: 1977, M.N.R.A.S. 179, 663 Google Scholar