{"paper":{"title":"Testing X-ray Measurements of Galaxy Cluster Gas Mass Fraction Using the Cosmic Distance-Duality Relation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"Tong-Jie Zhang, Xiao-Lei Meng, Xin Wang, Y. F. Huang","submitted_at":"2013-05-09T13:08:31Z","abstract_excerpt":"We propose a consistency test of some recent X-ray gas mass fraction ($f_{\\rm{gas}}$) measurements in galaxy clusters, using the cosmic distance-duality relation, $\\eta_{\\rm{theory}}=\\dl(1+z)^{-2}/\\da$, with luminosity distance ($\\dl$) data from the Union2 compilation of type Ia supernovae. We set $\\eta_{\\rm{theory}}\\equiv1$, instead of assigning any redshift parameterizations to it, and constrain the cosmological information preferred by $f_{\\rm{gas}}$ data along with supernova observations. We adopt a new binning method in the reduction of the Union2 data, in order to minimize the statistica"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.2077","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}