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Li, XD; Wang, S; Huang, QG; Zhang, X; Li, M; Zhang, X (reprint author), Northeastern Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China.
Dark energy and fate of the Universe
发表期刊SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
语种英语
关键词Supernova Legacy Survey Hubble-space-telescope Dynamics Parametrizations Constraints
摘要We explore the ultimate fate of the Universe by using a divergence-free parametrization for dark energy w(z)=w (0)+w (a) [ln(2 + z) / (1 + z) - ln 2]. Unlike the Chevallier-Polarski-Linder parametrization, this parametrization has well behaved, bounded behavior for both high redshifts and negative redshifts, and thus can genuinely cover many theoretical dark energy models. After constraining the parameter space of this parametrization by using the current cosmological observations, we find that, at the 95.4% confidence level, our Universe can still exist at least 16.7 Gyr before it ends in a big rip. Moreover, for the phantom energy dominated Universe, we find that a gravitationally bound system will be destroyed at a time , where P is the period of a circular orbit around this system, before the big rip.
2012
ISSN1674-7348
卷号55期号:7页码:1330-1334
学科领域Physics
收录类别SCI
项目资助者Project of Knowledge Innovation Program of Chinese Academy of Sciences; National Natural Science Foundation of China [11105053, 10705041, 10975032, 11175042, 10535060, 10975172, 10821504]; National Ministry of Education of China [NCET-09-0276, N100505001]; National Basic Research Program of China [2007CB815401] ; Project of Knowledge Innovation Program of Chinese Academy of Sciences; National Natural Science Foundation of China [11105053, 10705041, 10975032, 11175042, 10535060, 10975172, 10821504]; National Ministry of Education of China [NCET-09-0276, N100505001]; National Basic Research Program of China [2007CB815401] ; Project of Knowledge Innovation Program of Chinese Academy of Sciences; National Natural Science Foundation of China [11105053, 10705041, 10975032, 11175042, 10535060, 10975172, 10821504]; National Ministry of Education of China [NCET-09-0276, N100505001]; National Basic Research Program of China [2007CB815401] ; Project of Knowledge Innovation Program of Chinese Academy of Sciences; National Natural Science Foundation of China [11105053, 10705041, 10975032, 11175042, 10535060, 10975172, 10821504]; National Ministry of Education of China [NCET-09-0276, N100505001]; National Basic Research Program of China [2007CB815401]
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被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15074
专题理论物理所科研产出_SCI论文
通讯作者Zhang, X (reprint author), Northeastern Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China.
推荐引用方式
GB/T 7714
Li, XD,Wang, S,Huang, QG,et al. Dark energy and fate of the Universe[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(7):1330-1334.
APA Li, XD,Wang, S,Huang, QG,Zhang, X,Li, M,&Zhang, X .(2012).Dark energy and fate of the Universe.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(7),1330-1334.
MLA Li, XD,et al."Dark energy and fate of the Universe".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.7(2012):1330-1334.
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