Abstract
We compare two different probes of the expansion history of the universe, namely, luminosity distances from type Ia supernovae and angular diameter distances from galaxy clusters, using the Bayesian interpretation of Crossing statistic [1,2] in conjunction with the assumption of cosmic duality relation. Our analysis is conducted independently of any a-priori assumptionsabout the nature of dark energy. The model independent method which we invoke searchesfor inconsistencies between SNIa and galaxy cluster data sets.If detected such an inconsistency would imply the presence of systematics in either ofthe two data sets.Simulating observations based on expected WFIRST supernovae data and X-ray eROSITA + SZ Planck cluster data, we show that our method allows one to detect systematics with high precision and without advancing any hypothesis about the nature of dark energy.
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