Cosmological-model-independent tests of cosmic distance duality relation with Type Ia supernovae and radio quasars

被引:5
作者
He, Yuan [1 ]
Pan, Yu [1 ]
Shi, Dong-Ping [2 ]
Cao, Shuo [3 ]
Yu, Wen-Jie [1 ]
Diao, Jing-Wang [1 ]
Qian, Wei-Liang [1 ,4 ,5 ]
机构
[1] Chongqing Univ Posts & Telecommun, Sch Sci, Chongqing 400065, Peoples R China
[2] Chongqing Univ Arts & Sci, Sch Elect & Elect Engn, Chongqing, Peoples R China
[3] Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
[4] Univ Sao Paulo, Escola Engn Lorena, BR-12602810 Lorena, SP, Brazil
[5] Yangzhou Univ, Coll Phys Sci & Technol, Ctr Gravitat & Cosmol, Yangzhou 225009, Peoples R China
基金
中国国家自然科学基金; 巴西圣保罗研究基金会;
关键词
Cosmological parameters; Cosmology:observations; Supernovae; Quasars; GALAXY CLUSTERS; CONSTRAINTS; PARAMETER; PROFILE;
D O I
10.1016/j.cjph.2022.06.009
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this paper, we investigate the possible deviations of the cosmic distance duality relation (CDDR) using the combination of the largest SNe Ia (Pantheon) and compact radio quasar (QSO) samples through two model-independent approaches. The deviation of CDDR is written as D-L (z)/D-A(z)(1+z)(-2) = eta(z) and eta(z) = e(tau(z)/2), with the parameterizations of F-1 (tau(z) = 2 is an element of(1)z) and F-2 (tau(z) = 1+z)(2 is an element of 2) - 1). Furthermore, in order to compare the two resulting distances, two cosmological-model-independent methods, i.e., the nearby SNe Ia method and the GP method are employed to match the two distinct data at the same redshift. Our findings indicate that, compared with the results obtained in the literature, there is an improvement in precision when the latest SNe Ia and QSO samples are used. Specially, in the framework of nearby SNe Ia method, the CDDR would be constrained at the precision of delta is an element of(1) = 0.013 in Model F1 and delta is an element of(2) = 0.018 in Model F-2. Regarding the GP method, one observes that a larger data size would produce more stringent constraints on the CDDR parameters. Therefore, accompanied by further developments in cosmological observations and the analysis methods, our analysis provides an insight into the evidence for unaccounted opacity sources at an earlier stage of the universe, or at the very least the new physics involved.
引用
收藏
页码:297 / 307
页数:11
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