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arXiv · 2104.01614

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

R. F. L. Holanda·F. S. Lima·Akshay Rana·Deepak Jain
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Abstract

{In this paper, we use large scale structure observations to test the redshift dependence of cosmic distance duality relation (CDDR), $D_{\rm L}(1+z)^{-2}/D_{\rm A}=\eta(z)$}, with $D_{\rm L}$ and $D_{\rm A}$, 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 $\eta(z)$ parametrizations, It is observed that the CDDR remain redshift independent within $1.5\sigma$ 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.

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R. F. L. Holanda, F. S. Lima, Akshay Rana, Deepak Jain. 2021-04-04. Strong lensing systems and galaxy cluster observations as probe to the cosmic distance duality relation. https://doi.org/10.1140/epjc%2Fs10052-022-10040-6

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