ITP OpenIR  > 理论物理所科研产出  > SCI论文
Guo, Zong-Kuan; Zhu, Zong-Hong; Alcaniz, J. S.; Zhang, Yuan-Zhong; Guo, ZK , Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
Constraints on the Dvali-Gabadadze-Porrati model from recent supernova observations and baryon acoustic oscillations
发表期刊ASTROPHYSICAL JOURNAL
关键词Holographic Dark Energy High-redshift Supernovae Equation-of-state Probe Wmap Observations Hubble-space-telescope Cosmological Constant Cardassian Expansion Accelerating Universe Ia Supernovae Parameters
摘要Although there is mounting observational evidence that the expansion of our universe is undergoing a late-time acceleration, the mechanism for this acceleration is yet unknown. In the so-called Dvali-Gabadadze-Porrati (DGP) model this phenomenon is attributed to gravitational "leakage'' into extra dimensions. In this work, we mainly focus our attention on the constraints on the model from the "gold sample'' of Type Ia supernovae (SNe Ia), the first-year data from the Supernova Legacy Survey (SNLS), and the baryon acoustic oscillation (BAO) peak found in the Sloan Digital Sky Survey (SDSS). At 99.73% confidence level, the combination of the three databases provides Omega(m) = 0.270(-0.017)(+0. 018) and Omega(rc) = 0.216(-0.013)(+0.012) (hence, a spatially closed universe with Omega(k) = -0.350(-0.083)(+0.080)), which seems to be in contradiction with the most recent WMAP results indicating a flat universe. Based on this result, we also estimated the transition redshift (at which the universe switches from deceleration to acceleration) to be 0.70 < z(q=0) < 1.01, at 2 sigma confidence level.
2006
ISSN0004-637X
卷号646期号:1页码:1-7
学科领域Physics
收录类别SCI
引用统计
被引频次:56[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/311006/5944
专题理论物理所科研产出_SCI论文
通讯作者Guo, ZK , Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
推荐引用方式
GB/T 7714
Guo, Zong-Kuan,Zhu, Zong-Hong,Alcaniz, J. S.,et al. Constraints on the Dvali-Gabadadze-Porrati model from recent supernova observations and baryon acoustic oscillations[J]. ASTROPHYSICAL JOURNAL,2006,646(1):1-7.
APA Guo, Zong-Kuan,Zhu, Zong-Hong,Alcaniz, J. S.,Zhang, Yuan-Zhong,&Guo, ZK , Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China.(2006).Constraints on the Dvali-Gabadadze-Porrati model from recent supernova observations and baryon acoustic oscillations.ASTROPHYSICAL JOURNAL,646(1),1-7.
MLA Guo, Zong-Kuan,et al."Constraints on the Dvali-Gabadadze-Porrati model from recent supernova observations and baryon acoustic oscillations".ASTROPHYSICAL JOURNAL 646.1(2006):1-7.
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
Constraints on the D(228KB) 开放获取使用许可请求全文
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
[Guo, Zong-Kuan]的文章
[Zhu, Zong-Hong]的文章
[Alcaniz, J. S.]的文章
百度学术
百度学术中相似的文章
[Guo, Zong-Kuan]的文章
[Zhu, Zong-Hong]的文章
[Alcaniz, J. S.]的文章
必应学术
必应学术中相似的文章
[Guo, Zong-Kuan]的文章
[Zhu, Zong-Hong]的文章
[Alcaniz, J. S.]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。