摘要
主要研究了具有体积粘性的推广的Chaplygin气体(VGCG)的宇宙学观测限制.作为对先前工作的扩展,这里将考虑体积粘性的扰动.通过比较两种情况,可以得出如下结论:包含体积粘性扰动之后,得到更为严格的限制结果.
The observational constraints on viscous generalized chaplygin gas （ VGCG） model is mainly re-searched .As an extension of our work before , the perturbation of viscosity is considered .Through comparing the results of two different cases , the following conclusion is obtained：the result is more rigorous when the perturba-tion of bulk viscosity is included .
作者
李微
李丹
LI Wei LI Dan(College of Mathematics and Physics, Bohai University, Jinzhou 121013, China Department of Electrical and Electronic Engineering, Chengdu Industry College, Chengdu 611730)
出处
《渤海大学学报（自然科学版）》
CAS
2016年第3期219-222,共4页
Journal of Bohai University:Natural Science Edition
基金
国家自然科学基金项目(No:61301133)
关键词
观测限制
粘滞系数
VGCG模型
observational constraint
coefficient of viscosity
VGCG model
