NAOC Open IR  > 星系宇宙学研究部
Probing dynamics of dark energy with latest observations
Zhang, Yue-Cheng1,2; Zhang, Han-Yu1; Wang, Dan-Dan1,2; Qi, Yang-Han3; Wang, Yu-Ting1,4; Zhao, Gong-Bo1,2,4
2017-06-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
Volume17Issue:6
AbstractWe examine the validity of the Lambda CDM model and probe the dynamics of dark energy with the latest astronomical observations. Using the Om(z) diagnosis, we find that various kinds of observational data are in tension within the Lambda CDM framework. We then allow for dynamics of dark energy and investigate the constraint on dark energy parameters. We find that for two different kinds of parametrisations of the equation of state parameter w, a combination of current data mildly favours an evolving w, although the significance is not sufficient for it to be supported by Bayesian evidence. A forecast of the DESI survey shows that the dynamics of dark energy could be detected at the 7 sigma confidence level and would be decisively supported by Bayesian evidence, if the best-fit model of w derived from current data is the true model.
SubtypeArticle
KeywordCosmology Dark Energy Large Scale Structure
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Natural Science Foundation of China(11673025) ; National Natural Science Foundation of China(11673025) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Royal Society Newton Advanced Fellowship ; Royal Society Newton Advanced Fellowship ; National Natural Science Foundation of China(11673025) ; National Natural Science Foundation of China(11673025) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Royal Society Newton Advanced Fellowship ; Royal Society Newton Advanced Fellowship
DOI10.1088/1674-4527/17/6/50
WOS KeywordCOSMOLOGICAL CONSTANT ; CONSTRAINTS ; SUPERNOVA ; SPACE ; UNIVERSE ; SAMPLE
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(11673025) ; National Natural Science Foundation of China(11673025) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Royal Society Newton Advanced Fellowship ; Royal Society Newton Advanced Fellowship ; National Natural Science Foundation of China(11673025) ; National Natural Science Foundation of China(11673025) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Royal Society Newton Advanced Fellowship ; Royal Society Newton Advanced Fellowship
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000408362700002
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/20137
Collection星系宇宙学研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Swarthmore Coll, Dept Phys & Astron, Swarthmore, PA 19081 USA
4.Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England
Recommended Citation
GB/T 7714
Zhang, Yue-Cheng,Zhang, Han-Yu,Wang, Dan-Dan,et al. Probing dynamics of dark energy with latest observations[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(6).
APA Zhang, Yue-Cheng,Zhang, Han-Yu,Wang, Dan-Dan,Qi, Yang-Han,Wang, Yu-Ting,&Zhao, Gong-Bo.(2017).Probing dynamics of dark energy with latest observations.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(6).
MLA Zhang, Yue-Cheng,et al."Probing dynamics of dark energy with latest observations".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.6(2017).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, Yue-Cheng]'s Articles
[Zhang, Han-Yu]'s Articles
[Wang, Dan-Dan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, Yue-Cheng]'s Articles
[Zhang, Han-Yu]'s Articles
[Wang, Dan-Dan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, Yue-Cheng]'s Articles
[Zhang, Han-Yu]'s Articles
[Wang, Dan-Dan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.