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arxiv: 1102.1065 · v2 · submitted 2011-02-05 · 🌌 astro-ph.CO · gr-qc

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Observational Cosmology And The Cosmic Distance Duality Relation

Remya Nair , Sanjay Jhingan , Deepak Jain
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classification 🌌 astro-ph.CO gr-qc
keywords distancedualityrelationangularcosmicdiameterluminosityclusters
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We study the validity of cosmic distance duality relation between angular diameter and luminosity distances. To test this duality relation we use the latest Union2 Supernovae Type Ia (SNe Ia) data for estimating the luminosity distance. The estimation of angular diameter distance comes from the samples of galaxy clusters (real and mock) and FRIIb radio galaxies. We parameterize the distance duality relation as a function of redshift in six different ways. Our results rule out some of the parameterizations significantly.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Model-independent test of the cosmic distance duality relation with recent observational data

    astro-ph.CO 2026-03 conditional novelty 6.0

    Two model-independent methods applied to latest SN and BAO data find the cosmic distance duality relation consistent with observations within 1 sigma and no evidence of violation.