{"paper":{"title":"The current star formation rate of K+A galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Danielle Nielsen (Wisconsin), Hawaii), Roberto De Propris (CTIO), Susan E. Ridgway (CTIO), Tomotsugu Goto (ifa","submitted_at":"2011-06-03T20:14:52Z","abstract_excerpt":"We derive the stacked 1.4 GHz flux from FIRST (Faint Images of the Radio Sky at Twenty Centimeters) survey for 811 K+A galaxies selected from the SDSS DR7. For these objects we find a mean flux density of $56\\pm 9$ $\\mu$Jy. A similar stack of radio-quiet white dwarfs yields an upper limit of 43 $\\mu$Jy at a 5$\\sigma$ significance to the flux in blank regions of the sky. This implies an average star formation rate of 1.6 $\\pm$ 0.3 M$_{\\odot}$ year$^{-1}$ for K+A galaxies. However the majority of the signal comes from $\\sim$4% of K+A fields that have aperture fluxes above the $5\\sigma$ noise lev"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.0757","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"}