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Dynamics of particles in slowly rotating black holes with dipolar halos

Published online by Cambridge University Press:  01 October 2007

W. B. Han
W. B. Han*
Affiliation:
Shanghai Astronomical Observatory, Shanghai email: [email protected] Graduate School of the Chinese Academy of Sciences, Beijing
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Abstract

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In general, the model of galaxy assumes a central huge black hole surrounded by a massive halo, disk or ring. In this paper, we investigate the gravitational field structure of a slowly rotating black hole with a dipolar halo, and the dynamics and chaos of test particles moving in it. Using Poincaré sections and fast Lyapunov indicator (FLI) in general relativity, we investigate chaos under different dynamical parameters, and find that the FLI is suitable for detecting chaos and even resonant orbits.

Keywords

Galaxy: kinematics and dynamicsblack hole physicsgalaxies: halos
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 498 - 499
Copyright
Copyright © International Astronomical Union 2008

References

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Wu, X., Huang, T-Y. & Zhang, H. 2006, Phys. Rev. D, 74, 083001.CrossRefGoogle Scholar