Interacting models of soft coincidence

被引:79
作者
del Campo, Sergio
Herrera, Ramon
Olivares, German
Pavon, Diego
机构
[1] Pontificia Univ Catolica Valparaiso, Inst Fis, Valparaiso, Chile
[2] Univ Autonoma Barcelona, Dept Fis, Fac Ciencias, E-08193 Barcelona, Spain
来源
PHYSICAL REVIEW D | 2006年 / 74卷 / 02期
关键词
D O I
10.1103/PhysRevD.74.023501
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The coincidence problem of late cosmic acceleration is a serious riddle in connection with our understanding of the evolution of the Universe. In this paper we show that an interaction between the dark energy component (either phantom or quintessence) and dark matter can alleviate it. In this scenario the baryon component is independently conserved. This generalizes a previous study [S. del Campo, R. Herrera, and D. Pavon, Phys. Rev. D 71, 123529 (2005).] in which neither baryons nor phantom energy were considered.
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页数:9
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