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Structure Formation in Anisotropic Disks

Published online by Cambridge University Press:  01 August 2006

Eduard Vorobyov  and
Christian Theis
Eduard Vorobyov
Affiliation:
Dept. of Physics and Astronomy, Univ. of Western Ontario, London, Canada, email: [email protected]
Christian Theis
Affiliation:
Institute of Astronomy, Univ. of Vienna, Austria, email: [email protected]
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The majority of normal disk galaxies are characterized by non-axisymmetric structures like spirals or bars. These structural elements have been widely discussed in the literature as a result of gravitational instabilities which are connected to growing density waves or global instabilities of disks. A first insight into the properties of galactic discs was provided by linear stability analysis. However, a disadvantage of linear stability analysis remained its restriction to small perturbations, both in amplitude and wavelength. Thus, numerical simulations, especially hydrodynamical and stellar-hydrodynamical simulations became a primary tool for the analysis of galactic evolution.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 143
Copyright
Copyright © International Astronomical Union 2007