Cosmology with a variable Chaplygin gas

被引：108

作者：

Guo, Zong-Kuan ^{[1
]}

Zhang, Yuan-Zhong

机构：

[1] Kinki Univ, Dept Phys, Higashiosaka, Osaka 5778502, Japan

[2] CCAST, World Lab, Beijing 100080, Peoples R China

[3] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China

来源：

PHYSICS LETTERS B | 2007年 / 645卷 / 04期

基金：

中国国家自然科学基金; 日本学术振兴会;

关键词：

D O I：

10.1016/j.physletb.2006.12.063

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider a new generalized Chaplygin gas model that includes the original Chaplygin gas model as a special case. In such a model the generalized Chaplygin gas evolves as from dust to quiescence or phantom. We show that the background evolution for the model is equivalent to that for a coupled dark energy model with dark matter. The constraints from the current type la supernova data favour a phantom-like Chaplygin gas model. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：326 / 329

页数：4

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