Probing dark energy dynamics from current and future cosmological observations
Zhao, GB; Zhang XM(张新民); Zhang, XM
刊名PHYSICAL REVIEW D
2010
卷号81期号:4页码:43518
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.81.043518
通讯作者[Zhao, Gong-Bo] Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England ; [Zhao, Gong-Bo] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada ; [Zhang, Xinmin] Chinese Acad Sci, Inst High Energy Phys, Div Theoret Phys, Beijing 100049, Peoples R China ; [Zhang, Xinmin] Chinese Acad Sci, TPCSF, Beijing 100864, Peoples R China
文章类型Article
英文摘要We report the constraints on the dark energy equation-of-state w(z) using the latest "Constitution" SNe sample combined with the WMAP5 and Sloan Digital Sky Survey data. Assuming a flat Universe, and utilizing the localized principal component analysis and the model selection criteria, we find that the Lambda CDM model is generally consistent with the current data, yet there exists a weak hint of the possible dynamics of dark energy. In particular, a model predicting w(z) < -1 at z is an element of [0.25, 0.5) and w(z) > -1 at z is an element of [0.5, 0.75), which means that w(z) crosses -1 in the range of z is an element of [0.25, 0.75), is mildly favored at 95% confidence level. Given the best fit model for current data as a fiducial model, we make future forecast from the joint data sets of Joint Dark Energy Mission, Planck, and Large Synoptic Survey Telescope, and we find that the future surveys can reduce the error bars on the w bins by roughly a factor of 10 for a 5-w-bin model.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
原文出处查看原文
语种英语
WOS记录号WOS:000275898500032
引用统计
被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240614
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Zhao, GB,Zhang XM,Zhang, XM. Probing dark energy dynamics from current and future cosmological observations[J]. PHYSICAL REVIEW D,2010,81(4):43518.
APA Zhao, GB,张新民,&Zhang, XM.(2010).Probing dark energy dynamics from current and future cosmological observations.PHYSICAL REVIEW D,81(4),43518.
MLA Zhao, GB,et al."Probing dark energy dynamics from current and future cosmological observations".PHYSICAL REVIEW D 81.4(2010):43518.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
9012.pdf(509KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhao, GB]的文章
[张新民]的文章
[Zhang, XM]的文章
百度学术
百度学术中相似的文章
[Zhao, GB]的文章
[张新民]的文章
[Zhang, XM]的文章
必应学术
必应学术中相似的文章
[Zhao, GB]的文章
[张新民]的文章
[Zhang, XM]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 9012.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。