Instability of Thermally Conducting Self-Gravitating Systems

• 作者: Aiyub Khan Shaista Shaikh
• 来源期刊: 现代物理(英文)
• 学科: 数学
• 关键词: Jeans’ CRITERION NONEXTENSIVITY Thermally CONDUCTING Self-Gravitating
• 年，卷（期）: 2010,（1）
• 页码范围: 77-82
• 页数: 6页
• 分类号: O1

摘要

The gravitational instability of a thermally conducting self-gravitating system permeated by a uniform and oblique magnetic field has been analyzed in the framework of Tsallis’ nonextensive theory for possible mod-ifications in the Jeans’ instability criterion. It is concluded that the instability criterion is indeed modified into one that depends explicitly on the nonextensive parameter. The influence of thermal conductivity on the system stability is also examined.