THE WEAKLY NONLINEAR-THEORY OF DENSITY WAVES IN A STELLAR DISK

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题名:	THE WEAKLY NONLINEAR-THEORY OF DENSITY WAVES IN A STELLAR DISK
作者:	GRIV,E;CHIUEH,TH;PETER,W
贡献者:	天文研究所
关键词:	GALAXY SIMULATIONS
日期:	1994
上传时间:	2010-06-29 19:36:29 (UTC+8)
出版者:	中央大學
摘要:	Quasilinear theory is applied to the adiabatic wave-star interaction of a differentially-rotating stellar disk of a galaxy. Under the influence of growing spiral waves the velocity dispersion of stars increases and the surface mass density becomes more peaked. The resulting distortion in phase space leads to a decrease in the growth rate of the waves, and as the result the Jeans instability should end after a few rotations of the system. The theory is confirmed by N-body computer simulations.
關聯:	PHYSICA A
显示于类别:	[天文研究所] 期刊論文

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