ITP OpenIR  > 理论物理所科研产出  > SCI论文
Feng, B; Wang, XL; Zhang, XM; Feng, B , Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100039, Peoples R China.
Dark energy constraints from the cosmic age and supernova
Source PublicationPHYSICS LETTERS B
KeywordGlobular-cluster Messier-4 Flux-averaging Analysis Equation-of-state Cosmological Constant Universe Consequences Distances Sequence Density Matter
AbstractUsing the low limit of cosmic ages from globular cluster and the white dwarfs: t(0) > 12 Gyr, together with recent new high redshift supernova observations from the HST/GOODS program and previous supernova data, we give a considerable estimation of the equation of state for dark energy, with uniform priors as weak as 0.2 < Omega(m) < 0.4 or 0.1 < Omega(m)h(2) < 0.16. We find cosmic age limit plays a significant role in lowering the upper bound on the variation amplitude of dark energy equation of state. We propose in this Letter a new scenario of dark energy dubbed quintom, which gives rise to the equation of state larger than -1 in the past and less than -1 today, satisfying current observations. In addition we have also considered the implications of recent X-ray gas mass fraction data on dark energy, which favors a negative running of the equation of state. (C) 2004 Elsevier B.V. All rights reserved.
2005
ISSN0370-2693
Volume607Issue:40910Pages:35-41
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:889[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13881
Collection理论物理所科研产出_SCI论文
Corresponding AuthorFeng, B , Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100039, Peoples R China.
Recommended Citation
GB/T 7714
Feng, B,Wang, XL,Zhang, XM,et al. Dark energy constraints from the cosmic age and supernova[J]. PHYSICS LETTERS B,2005,607(40910):35-41.
APA Feng, B,Wang, XL,Zhang, XM,&Feng, B , Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100039, Peoples R China..(2005).Dark energy constraints from the cosmic age and supernova.PHYSICS LETTERS B,607(40910),35-41.
MLA Feng, B,et al."Dark energy constraints from the cosmic age and supernova".PHYSICS LETTERS B 607.40910(2005):35-41.
Files in This Item:
File Name/Size DocType Version Access License
Dark energy constrai(380KB) 开放获取LicenseApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Feng, B]'s Articles
[Wang, XL]'s Articles
[Zhang, XM]'s Articles
Baidu academic
Similar articles in Baidu academic
[Feng, B]'s Articles
[Wang, XL]'s Articles
[Zhang, XM]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Feng, B]'s Articles
[Wang, XL]'s Articles
[Zhang, XM]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.