Cosmography using strong-lensing systems and cosmic chronometers

被引：6

作者：

Lizardo, Andres ^{[1
]}

Amante, Mario H. ^{[1
]}

Garcia-Aspeitia, Miguel A. ^{[1
,2
]}

Magana, Juan ^{[3
,4
]}

Motta, V ^{[5
]}

机构：

[1] Univ Autonoma Zacatecas, Unidad Acad Fis, Calzada Solidaridad Esquina Paseo Bufa S-N, Zacatecas 98060, Zacatecas, Mexico

[2] Consejo Nacl Ciencia & Technol, Av Insurgentes Sur 1582, Ciudad De Mexico 03940, Mexico

[3] Pontificia Univ Catolica Chile, Inst Astrofis, Av Vicuna Mackenna, Santiago 4860, Chile

[4] Pontificia Univ Catolica Chile, Ctr Astroingn, Av Vicuna Mackenna, Santiago 4860, Chile

[5] Univ Valparaiso, Inst Fis & Astron, Avda Gran Bretana 1111, Valparaiso, Chile

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2021年 / 507卷 / 04期

关键词：

gravitational lensing: strong; cosmological parameters; cosmology: theory; EQUATION-OF-STATE; DARK ENERGY; COSMOLOGICAL PARAMETERS; ACS SURVEY; CONSTRAINTS; SUPERNOVAE; STELLAR; EXPANSION; COMPONENT; DYNAMICS;

D O I：

10.1093/mnras/stab2465

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using a new sub-sample of observed strong gravitational lens systems, for the first time, we present the equation for the angular diameter distance in the y-redshift scenario for cosmography and use it to test the cosmographic parameters. In addition, we also use the observational Hubble data from cosmic chronometers and a joint analysis of both data are performed. Among the most important conclusions are that this new analysis for cosmography using strong-lensing systems (SLSs) is equally competitive to constrain the cosmographic parameters as others presented in literature. Additionally, we present the reconstruction of the effective equation of state inferred from our samples, showing that at z = 0 those reconstructions from SLSs and joint analysis are in concordance with the standard model of cosmology.

引用

页码：5720 / 5731

页数：12

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