{"paper":{"title":"A large H$\\alpha$ survey of star formation in relaxed and merging galaxy cluster environments at $z\\sim0.15-0.3$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Ana Afonso, Andra Stroe, David Sobral, Jo\\~ao Calhau, Lara Alegre, Reinout van Weeren, Sergio Santos","submitted_at":"2016-11-10T21:03:44Z","abstract_excerpt":"We present the first results from the largest H$\\alpha$ survey of star formation and AGN activity in galaxy clusters. Using 9 different narrow band filters, we select $>3000$ H$\\alpha$ emitters within $19$ clusters and their larger scale environment over a total volume of $1.3\\times10^5$ Mpc$^3$. The sample includes both relaxed and merging clusters, covering the $0.15-0.31$ redshift range and spanning from $5\\times10^{14}$ $M_{\\odot}$ to $30\\times10^{14}$ $M_{\\odot}$. We find that the H$\\alpha$ luminosity function (LF) for merging clusters has a higher characteristic density $\\phi^*$ compared"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.03512","kind":"arxiv","version":2},"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"}