Probing dynamics of dark energy with supernova, galaxy clustering and the three-year Wilkinson Microwave Anisotropy Probe (WMAP) observations | |
Zhao GB(赵公博); Xia JQ(夏俊卿)![]() ![]() ![]() ![]() | |
2007 | |
发表期刊 | INTERNATIONAL JOURNAL OF MODERN PHYSICS D
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卷号 | 16期号:7页码:1229-1242 |
通讯作者 | Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; Univ Tokyo, Res Ctr Early Univ, Grad Sch Sci, Tokyo 1130033, Japan |
文章类型 | Review |
摘要 | Using the Markov chain Monte Carlo (MCMC) method, we perform a global analysis constraining the dynamics of dark energy in light of the supernova (Riess "gold" samples), galaxy clustering (SDSS 3D power spectra and SDSS Lyman-alpha forest) and the latest three-year Wilkinson Microwave Anisotropy Probe (WMAP) observations. We have allowed the dark energy equation of state to get across -1 and pay particular attention to the effects when incorrectly neglecting dark energy perturbations. We find the parameter space of dynamical dark energy is now well-constrained with w(z = 0.3) = -1.046(-0.086-0.196)(+0.096+0.226) (1, 2 sigma). Neglecting dark energy perturbations will make the parameter space of dark energy non-trivially smaller. The dynamical dark energy model where the equation of state crosses -1 is mildly favored and the standard Lambda CDM model is still a good fit to the current data. |
关键词 | dark energy CMB SN LSS |
学科领域 | Astronomy & Astrophysics |
DOI | 10.1142/S0218271807010717 |
URL | 查看原文 |
语种 | 英语 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
WOS记录号 | WOS:000251548900009 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ihep.ac.cn/handle/311005/239208 |
专题 | 理论物理室 粒子天体物理中心 多学科研究中心 |
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,Xia JQ,Zhang XM,et al. Probing dynamics of dark energy with supernova, galaxy clustering and the three-year Wilkinson Microwave Anisotropy Probe (WMAP) observations[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D,2007,16(7):1229-1242. |
APA | 赵公博.,夏俊卿.,张新民.,Zhao, GB.,Xia, JQ.,...&Feng, B.(2007).Probing dynamics of dark energy with supernova, galaxy clustering and the three-year Wilkinson Microwave Anisotropy Probe (WMAP) observations.INTERNATIONAL JOURNAL OF MODERN PHYSICS D,16(7),1229-1242. |
MLA | 赵公博,et al."Probing dynamics of dark energy with supernova, galaxy clustering and the three-year Wilkinson Microwave Anisotropy Probe (WMAP) observations".INTERNATIONAL JOURNAL OF MODERN PHYSICS D 16.7(2007):1229-1242. |
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