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Dynamics of the Antonov-Nuritdinov Planar Galaxy Model

Published online by Cambridge University Press:  12 April 2016

S. Sridhar
S. Sridhar*
Affiliation:
Tata Institute of Fundamental Research, Bombay - 400005, Indiaand Rajaram Nityananda, Raman Research Institute, Bangalore - 560080, India

Abstract

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A time dependent solution of the collisionless Boltzmann equation (CBE) in two space dimensions first given by Antonov and Nuritdinov is discussed further. The solution is self consistent with a quadratic potential and represents a generalised Freeman bar characterised by 10 parameters. Because of two conserved quantities, they form an 8-dimensional phase space. Geometric and group theoretical aspects of this dynamical system are discussed. Systems of this type can show chaotic oscillations in general. This study raises interesting general questions about time dependent solutions of the CBE.

Type
Part III Stellar Systems and Galaxies
Information
International Astronomical Union Colloquium , Volume 132: Instability, Chaos and Predictability in Celestial Mechanics and Stellar Dynamics , 1993 , pp. 255 - 261
Copyright
Copyright © Nova Science Publishers 1993

References

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