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Constraining dark energy using observational growth rate data
Shi, K.1,2; Huang, Y. F.1,2; Lu, T.3,4
2012-10-31
Source PublicationPHYSICS LETTERS B
Volume717Issue:4-5Pages:299-306
AbstractObservational 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.
KeywordCosmological Parameters Dark Energy Large-scale Structure Of Universe
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.physletb.2012.09.058
WOS KeywordEQUATION-OF-STATE ; BARYON ACOUSTIC-OSCILLATIONS ; REDSHIFT-SPACE DISTORTIONS ; PROBE WMAP OBSERVATIONS ; LUMINOUS RED GALAXIES ; GAMMA-RAY BURSTS ; COSMOLOGICAL CONSTANT ; PERTURBATIONS ; SUPERNOVAE ; COMPONENT
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000310863300003
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15549
Collection院士文集_陆埮
Affiliation1.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
Recommended Citation
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.
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