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On the Evolution of Perturbed Gas Disks

Published online by Cambridge University Press:  04 August 2017

S⊘ren-Aksel S⊘rensen
S⊘ren-Aksel S⊘rensen*
Affiliation:
Department of Computer Science, University College London, U.K.

Extract

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Numerical experiments have shown that axisymmetric shearing gas disks will develop a spiral pattern when a non axi-symmetric contribution is introduced. This mechanism initially seems to be a prime candidate as the source of galactic spiral arms. The experiments have, however, failed to explain the formation of more than the most open systems and the smooth transition in the morphological sequence does not indicate any change in the physical mechanism between Sa and Sc types.

Type
II. Spiral Structure
Information
Symposium - International Astronomical Union , Volume 100: Internal Kinematics and Dynamics of Galaxies , 1983 , pp. 129 - 130
Copyright
Copyright © Reidel 1983 

References

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S⊘rensen, S.-A. and Matsuda, T., 1982. Mon. Not. R. astr. Soc., 198, 865.Google Scholar