Cosmography using strong-lensing systems and cosmic chronometers. Issue 4 (2nd September 2021)

• Record Type: Journal Article
• Authors: Lizardo, Andrés; Amante, Mario H; García-Aspeitia, Miguel A; Magaña, Juan; Motta, V
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 507:Issue 4(2021)
• Page Start: 5720
• Page End: 5731
• Publication Date: 2021-09-02
• Subjects: gravitational lensing: strong -- cosmological parameters -- cosmology: theory; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/stab2465
• Languages: English
• ISSNs: 0035-8711

Abstract

ABSTRACT: 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.