Gravitational Instability of a Nonrotating Galaxy

Alexander W.Chao

Chinese Physics C> 2006, Vol. 30> Issue(S1) : 6-10

Gravitational Instability of a Nonrotating Galaxy

Alexander W.Chao ^,

Stanford Linear Accelerator Center, U.S.A.

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Abstract：
Gravitational instability of the distribution of stars in a galaxy is a well-known phenomenon in astrophysics. This work is a preliminary attempt to analyze this phenomenon using the standard tools developed in accelerator physics. By applying this analysis, it is found that a stable nonrotating galaxy would become unstable if its size exceeds a certain limit that depends on its mass density.

References

[1]

. Palmer P L. Stability of Collisionless Stellar Systems,Kluwer Academic Publishers, The Netherlands, 19942. Chao A W. Physics of Collective Beam Instabilities in HighEnergy Accelerators, New York: John Wiley Sons, 19933. Vlasov A A. J. Phys. USSR, 1945, 9: 25 Chandrasekhar S.Plasma Physics, Univ. Chicago, 19604. Landau L D. J. Phys. USSR, 1946, 10: 255. Chao A W. Proc. Workshop on Quantum Aspects of BeamPhysics, Hiroshima, Japan, 2003, SLAC-PUB-100196. Haissinski J. Nuovo Cimento, 1973, B18: 72

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Alexander W.Chao. Gravitational Instability of a Nonrotating Galaxy[J]. Chinese Physics C, 2006, 30(S1): 6-10.

Alexander W.Chao. Gravitational Instability of a Nonrotating Galaxy[J]. Chinese Physics C, 2006, 30(S1): 6-10. shu

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Received: 2005-12-06
Revised: 1900-01-01

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