Strong lensing systems and galaxy cluster observations as probe to the cosmic distance duality relation

Autor: R. F. L. Holanda, F. S. Lima, Akshay Rana, Deepak Jain
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: European Physical Journal C: Particles and Fields, Vol 82, Iss 2, Pp 1-7 (2022)
Druh dokumentu: article
ISSN: 1434-6044
1434-6052
DOI: 10.1140/epjc/s10052-022-10040-6
Popis: Abstract In this paper, we use large scale structure observations to test the redshift dependence of cosmic distance duality relation (CDDR), $$D_\mathrm{L}(1+z)^{-2}/D_\mathrm{A}=\eta (z)$$ D L ( 1 + z ) - 2 / D A = η ( z ) , with $$D_\mathrm{L}$$ D L and $$D_\mathrm{A}$$ D A , being the luminosity and angular diameter distances, respectively. In order to perform the test, the following data set are considered: strong lensing systems and galaxy cluster measurements (gas mass fractions). No specific cosmological model is adopted, only a flat universe is assumed. By considering two $$\eta (z)$$ η ( z ) parametrizations, It is observed that the CDDR remain redshift independent within $$1.5\sigma $$ 1.5 σ which is in full agreement with other recent tests involving cosmological data. It is worth to comment that our results are independent of the baryon budget of galaxy clusters.
Databáze: Directory of Open Access Journals
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