IHEP OpenIR  > 粒子天体物理中心
Dark energy constraints after the new Planck data
Xia JQ(夏俊卿); Li H(李虹); 张新民;Xia, JQ; Li, H; Zhang, XM
2013
发表期刊PHYSICAL REVIEW D
卷号88期号:6页码:63501
摘要The Planck Collaboration has recently published maps of the cosmic microwave background radiation with the highest precision. In the standard flat Lambda cold dark matter framework, Planck data show that the Hubble constant H-0 is in tension with that measured by the several direct probes on H-0. In this paper, we perform a global analysis from the current observational data in the general dark energy models and find that resolving this tension requires the dark energy model with its equation of state (EOS) w not equal -1. Firstly, assuming the w to be a constant, the Planck data favor w < -1 at about 2 sigma confidence level when combining with the supernovae "supernova legacy survey" compilation. Consequently the value derived on H-0, H-0 71.3 +/- 2.0 km s(-1) Mpc(-1) (68% C.L.) is consistent with that from direct H-0 probes. We then investigate the dark energy model with a time-evolving w, and obtain the 68% C.L. constraints w(0) = -0.81 +/- 0.19 and w(alpha) = -1.9 +/- 1.1 from the Planck data and the "supernova legacy survey" compilation. Current data still slightly favor the quintom dark energy scenario with EOS across the cosmological constant boundary w -1.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.88.063501
收录类别SCI
WOS记录号WOS:000323894000005
引用统计
被引频次:45[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/311005/224569
专题粒子天体物理中心
推荐引用方式
GB/T 7714
Xia JQ,Li H,张新民;Xia, JQ,et al. Dark energy constraints after the new Planck data[J]. PHYSICAL REVIEW D,2013,88(6):63501.
APA 夏俊卿,李虹,张新民;Xia, JQ,Li, H,&Zhang, XM.(2013).Dark energy constraints after the new Planck data.PHYSICAL REVIEW D,88(6),63501.
MLA 夏俊卿,et al."Dark energy constraints after the new Planck data".PHYSICAL REVIEW D 88.6(2013):63501.
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
9269.pdf(595KB)期刊论文作者接受稿限制开放CC BY-NC-SA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
[夏俊卿]的文章
[李虹]的文章
[张新民;Xia, JQ]的文章
百度学术
百度学术中相似的文章
[夏俊卿]的文章
[李虹]的文章
[张新民;Xia, JQ]的文章
必应学术
必应学术中相似的文章
[夏俊卿]的文章
[李虹]的文章
[张新民;Xia, JQ]的文章
相关权益政策
暂无数据
收藏/分享
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。