| Issue |
EPL
Volume 116, Number 6, December 2016
|
|
|---|---|---|
| Article Number | 60005 | |
| Number of page(s) | 7 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/116/60005 | |
| Published online | 08 February 2017 | |
The nonextensive parameter for the rotating astrophysical systems with power-law distributions
Department of Physics, School of Science, Tianjin University - Tianjin 300072, China
(a) jldu@tju.edu.cn
Received: 23 June 2016
Accepted: 19 January 2017
We study the nonextensive parameter for the rotating astrophysical systems with power-law distributions, including both the rotating self-gravitating system and the rotating space plasma. We extend the equation of the nonextensive parameter to a complex system with arbitrary force field 
, and derive a general equation of the q-parameter, most generally including both the rotating self-gravitating systems and the rotating space plasmas. At the same time, we reproduce the κ-distribution in space plasmas and obtain equations of the κ-parameter. We show that the q-parameter is related not only to the temperature gradient, the gravitational force and the electromagnetic force, but also to the inertial centrifugal force and Coriolis force. Thus, the rotation introduces a significant effect on the nonextensivity in the systems. Several examples are given to illustrate the nonextensive effect introduced by the rotation.
PACS: 05.20.-y – Classical statistical mechanics / 95.30.Tg – Thermodynamic processes, conduction, convection, equations of state / 94.05.-a – Space plasma physics
© EPLA, 2016
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.