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Statistical Test of Distance-Duality Relation with Type Ia Supernovae and Baryon Acoustic Oscillations
Ma, Cong1,2; Corasaniti, Pier-Stefano3
2018-07-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume861Issue:2Pages:9
Corresponding AuthorMa, Cong(cma@pmo.ac.cn)
AbstractWe test the distance-duality relation eta equivalent to d(L) [(1 + z)(2)d(A)] = 1 between cosmological luminosity distance (d(L)) from the JLA SNe Ia compilation and angular-diameter distance (d(A)) based on Baryon Oscillation Spectroscopic Survey (BOSS) and WiggleZ baryon acoustic oscillation measurements. The d(L) measurements are matched to d(A) redshift by a statistically consistent compression procedure. With Monte Carlo methods, nontrivial and correlated distributions of. can be explored in a straightforward manner without resorting to a particular evolution template eta(z). Assuming independent constraints on cosmological parameters that are necessary to obtain d(L) and d(A) values, we find 9% constraints consistent with eta = 1 from the analysis of SNIa + BOSS and an 18% bound results from SNIa + WiggleZ. These results are contrary to previous claims that eta < 1 has been found close to or above the 1 sigma level. We discuss the effect of different cosmological parameter inputs and the use of the apparent deviation from distance-duality as a proxy of systematic effects on cosmic distance measurements. The results suggest possible systematic overestimation of SNIa luminosity distances compared with d(A) data when a Planck Lambda CDM cosmological parameter inference is used to enhance the precision. If interpreted as an extinction correction due to a gray dust component, the effect is broadly consistent with independent observational constraints.
Keywordcosmology: theory distance scale intergalactic medium methods: data analysis methods: statistical
DOI10.3847/1538-4357/aac88f
WOS KeywordMICROWAVE BACKGROUND ANISOTROPIES ; X-RAY MEASUREMENTS ; GALAXY CLUSTERS ; DARK ENERGY ; GENERAL-RELATIVITY ; COSMOLOGICAL MODEL ; DUST ; REPUBLICATION ; CONSTRAINTS ; DEFINITION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000438684300004
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/32598
Collection中国科学院紫金山天文台
Corresponding AuthorMa, Cong
Affiliation1.Chinese Acad Sci, Purple Mt Observ, 8 Yuanhua Rd, Nanjing 210034, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Grad Sch, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Univ Paris Diderot, LUTH, UMR CNRS 8102, Observ Paris,PSL Res Univ, 5 Pl Jules Janssen, F-92190 Meudon, France
Recommended Citation
GB/T 7714
Ma, Cong,Corasaniti, Pier-Stefano. Statistical Test of Distance-Duality Relation with Type Ia Supernovae and Baryon Acoustic Oscillations[J]. ASTROPHYSICAL JOURNAL,2018,861(2):9.
APA Ma, Cong,&Corasaniti, Pier-Stefano.(2018).Statistical Test of Distance-Duality Relation with Type Ia Supernovae and Baryon Acoustic Oscillations.ASTROPHYSICAL JOURNAL,861(2),9.
MLA Ma, Cong,et al."Statistical Test of Distance-Duality Relation with Type Ia Supernovae and Baryon Acoustic Oscillations".ASTROPHYSICAL JOURNAL 861.2(2018):9.
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