Jeans Gravitational Instability with $\kappa $-Deformed Kaniadakis Distribution
Hui Chen1** , Shi-Xuan Zhang1,2 , San-Qiu Liu1
1 Department of Physics, Nanchang University, Nanchang 3300472 School of Science, East China University of Technology, Nanchang 330013
Abstract ：The Jeans instabilities in an unmagnetized, collisionless, isotropic self-gravitating matter system are investigated in the context of $\kappa$-deformed Kaniadakis distribution based on kinetic theory. The result shows that both the growth rates and critical wave numbers of Jeans instability are lower in the $\kappa$-deformed Kaniadakis distributed self-gravitating matter systems than the Maxwellian case. The standard Jeans instability for a Maxwellian case is recovered under the limitation $\kappa=0$.
收稿日期: 2016-12-27
出版日期: 2017-06-23
:
51.10.+y
(Kinetic and transport theory of gases)
05.20.-y
(Classical statistical mechanics)
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2017, Vol. 34 
