PMO OpenIR  > 南极天文中心
THE GAMMA-RAY BURST HUBBLE DIAGRAM AND ITS IMPLICATIONS FOR COSMOLOGY
Wei, Jun-Jie1; Wu, Xue-Feng1,2,3; Melia, Fulvio4,5
2013-07-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume772Issue:1Pages:0
Corresponding AuthorWei, JJ (reprint author), Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China. Email: jjwei@pmo.ac.cn ; xfwu@pmo.ac.cn ; fmelia@email.arizona.edu
AbstractIn this paper, we continue to build support for the proposal to use gamma-ray bursts (GRBs) as standard candles in constructing the Hubble diagram at redshifts beyond the current reach of Type Ia supernova observations. We confirm that correlations among certain spectral and light-curve features can indeed be used as luminosity indicators, and demonstrate from the most up-to-date GRB sample appropriate for this work that the Lambda CDM model optimized with these data is characterized by parameter values consistent with those in the concordance model. Specifically, we find that (Omega(m), Omega(Lambda)) approximate to (0.25(-0.06)(+0.05), 0.75(-0.05)(+0.06)), which are consistent, to within 1 sigma, with (0.29, 0.71) obtained from the 9 yr Wilkinson Microwave Anisotropy Probe data. We also carry out a comparative analysis between Lambda CDM and the R-h = ct universe and find that the optimal Lambda CDM model fits the GRB Hubble diagram with a reduced chi(2)(dof) approximate to 2.26, whereas the fit using R-h = ct results in a chi(2)(dof) approximate to 2.14. In both cases, about 20% of the events lie at least 2 sigma away from the best-fit curves, suggesting that either some contamination by non-standard GRB luminosities is unavoidable or that the errors and intrinsic scatter associated with the data are being underestimated. With these optimized fits, we use three statistical tools-the Akaike information criterion, the Kullback information criterion, and the Bayes information criterion-to show that, based on the GRB Hubble diagram, the likelihood of R-h = ct being closer to the correct model is similar to 85%-96%, compared to similar to 4%-15% for Lambda CDM.
KeywordCosmology: Observations Cosmology: Theory Dark Energy Early Universe Gamma-ray Burst: General
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/772/1/43
WOS KeywordHOST GALAXY ; OPTICAL AFTERGLOW ; DARK ENERGY ; E-P,E-I-E-ISO CORRELATION ; LUMINOSITY RELATIONS ; INTRINSIC SPECTRA ; MODEL SELECTION ; SPACE-TELESCOPE ; PEAK LUMINOSITY ; IA SUPERNOVAE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000321673700043
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9912
Collection南极天文中心
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Ctr Antarctic Astron, Nanjing 210008, Jiangsu, Peoples R China
3.Nanjing Univ, Purple Mt Observ, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210008, Jiangsu, Peoples R China
4.Univ Arizona, Program Appl Math, Dept Phys, Tucson, AZ 85721 USA
5.Univ Arizona, Dept Astron, Tucson, AZ 85721 USA
Recommended Citation
GB/T 7714
Wei, Jun-Jie,Wu, Xue-Feng,Melia, Fulvio. THE GAMMA-RAY BURST HUBBLE DIAGRAM AND ITS IMPLICATIONS FOR COSMOLOGY[J]. ASTROPHYSICAL JOURNAL,2013,772(1):0.
APA Wei, Jun-Jie,Wu, Xue-Feng,&Melia, Fulvio.(2013).THE GAMMA-RAY BURST HUBBLE DIAGRAM AND ITS IMPLICATIONS FOR COSMOLOGY.ASTROPHYSICAL JOURNAL,772(1),0.
MLA Wei, Jun-Jie,et al."THE GAMMA-RAY BURST HUBBLE DIAGRAM AND ITS IMPLICATIONS FOR COSMOLOGY".ASTROPHYSICAL JOURNAL 772.1(2013):0.
Files in This Item:
File Name/Size DocType Version Access License
2013094THE GAMMA-RAY(631KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wei, Jun-Jie]'s Articles
[Wu, Xue-Feng]'s Articles
[Melia, Fulvio]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wei, Jun-Jie]'s Articles
[Wu, Xue-Feng]'s Articles
[Melia, Fulvio]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wei, Jun-Jie]'s Articles
[Wu, Xue-Feng]'s Articles
[Melia, Fulvio]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2013094THE GAMMA-RAY BURST HUBBLE DIAGRAM AND ITS IMPLICATIONS FOR COSMOLOGY.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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