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题名: Constraining dark energy using observational growth rate data
作者: Shi, K.1, 2; Huang, Y. F.1, 2; Lu Tan(陆埮)3, 4
刊名: PHYSICS LETTERS B
出版日期: 2012-10-31
卷号: 717, 期号:4-5, 页码:299-306
关键词: Cosmological parameters ; Dark energy ; Large-scale structure of universe
DOI: 10.1016/j.physletb.2012.09.058
文章类型: Article
英文摘要: Observational growth rate data had been derived from observations of redshift distortions in galaxy redshift surveys. Here we use the growth rate data to place constraints on the dark energy model parameters. By performing a joint analysis with the Type la supernova, baryon acoustic oscillation and cosmic microwave background data, it is found that the growth rate data are useful for improving the constraints. The joint constraints show that the ACDM model is still in good agreement with current observations, although a time-variant dark energy still cannot be ruled out. It is argued that the growth rate data are helpful for understanding the dark energy. With more accurate data available in the future, we will have a powerful tool for constraining the cosmological and dark energy parameters. (C) 2012 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: EQUATION-OF-STATE ; BARYON ACOUSTIC-OSCILLATIONS ; REDSHIFT-SPACE DISTORTIONS ; PROBE WMAP OBSERVATIONS ; LUMINOUS RED GALAXIES ; GAMMA-RAY BURSTS ; COSMOLOGICAL CONSTANT ; PERTURBATIONS ; SUPERNOVAE ; COMPONENT
收录类别: SCI
语种: 英语
WOS记录号: WOS:000310863300003
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15539
Appears in Collections:陆埮_期刊论文

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作者单位: 1.Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China
2.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
4.Nanjing Univ, Purple Mt Observ, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
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