{"paper":{"title":"Infalling Faint [OII] Emitters in Abell 851. II. Environment, Kinematics, and Star Formation History","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Crystal L. Martin, Taro Sato","submitted_at":"2006-05-01T21:28:38Z","abstract_excerpt":"We report on the environments, kinematics, and SFH of [OII]-selected objects in the z=0.4 galaxy cluster A851, using Keck optical spectra. A large fraction (~55%) of cluster [OII] emitters show strong Balmer absorptions (>4A in equivalent width at Hd). These e(a) spectra have been attributed to dusty starburst galaxies, an interpretation supported by our reddening measurements, which show a high frequency of very reddened [EBV>0.5] [OII] emitters. Our spectral modeling requires starburst ages >1Gyr, shorter than the cluster crossing timescale. We argue that this starburst phase occurs during c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0605044","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"}