Entropy perturbations in quartessence Chaplygin models -: art. no. 061302

被引：72
|
作者：
Reis, RRR [1 ]
Waga, I [1 ]
Calvao, MO [1 ]
Jorás, SE [1 ]
机构：
[1] Univ Fed Rio de Janeiro, Inst Phys, BR-21941972 Rio De Janeiro, Brazil
来源：
PHYSICAL REVIEW D | 2003年 / 68卷 / 06期
关键词：
D O I：
10.1103/PhysRevD.68.061302
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We show that entropy perturbations can eliminate instabilities and oscillations in the mass power spectrum of the quartessence Chaplygin models. Our results enlarge the current parameter space of models compatible with large-scale structure and cosmic microwave background observations.
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页数：4
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