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); Zhang XM(张新民); Zhao, GB; Xia, JQ; Zhang, XM; Feng, B
刊名INTERNATIONAL JOURNAL OF MODERN PHYSICS D
2007
卷号16期号:7页码:1229-1242
关键词dark energy CMB SN LSS
学科分类Astronomy & Astrophysics
DOI10.1142/S0218271807010717
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
英文摘要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.
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
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语种英语
WOS记录号WOS:000251548900009
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被引频次:40[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/311005/239208
专题中国科学院高能物理研究所_理论物理室_期刊论文
中国科学院高能物理研究所_粒子天体物理中心
中国科学院高能物理研究所_多学科研究中心
作者单位中国科学院高能物理研究所
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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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