Constraining dark energy using observational growth rate data

	Constraining dark energy using observational growth rate data
	Shi, K.1,2; Huang, Y. F.1,2; Lu, T.3,4
刊名	PHYSICS LETTERS B
	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
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
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/15539]
专题	紫金山天文台_院士文集_陆埮
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
推荐引用方式 GB/T 7714	Shi, K.,Huang, Y. F.,Lu, T.. Constraining dark energy using observational growth rate data[J]. PHYSICS LETTERS B,2012,717(4-5):299-306.
APA	Shi, K.,Huang, Y. F.,&Lu, T..(2012).Constraining dark energy using observational growth rate data.PHYSICS LETTERS B,717(4-5),299-306.
MLA	Shi, K.,et al."Constraining dark energy using observational growth rate data".PHYSICS LETTERS B 717.4-5(2012):299-306.