{"paper":{"title":"Evolution of the Colour--Radius Relation and the Morphology--Radius Relation in the SDSS Galaxy Clusters","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Masafumi Yagi (NAOJ), Masayuki Tanaka, Sadanori Okamura (Tokyo), Tomotsugu Goto (Tokyo)","submitted_at":"2003-12-01T21:00:09Z","abstract_excerpt":"We have investigated the redshift evolution of the colour--cluster-centric-radius relation and the morphology--cluster-centric-radius relation in three redshift bins,\n  $0.02\\leq z\\leq 0.14$, $0.14< z\\leq 0.20$, and $0.20< z\\leq 0.30$ using a homogeneous sample of 736 galaxy clusters selected from the Sloan\n Digital Sky Survey. Both the relations are well-defined in all the redshift bins; the fraction of blue/late-type galaxies increases toward outside of clusters.Blue/late-type galaxy fractions are found to decrease with decreasing redshift at any cluster-centric radius. The trend is consiste"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0312040","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"}