{"paper":{"title":"Spitzer 70~$\\mu$m Emission as a SFR Indicator for Sub--Galactic Regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Charles W. Engelbracht, Daniela Calzetti, Daniel A Dale, John Moustakas, Jr., Robert C. Kennicutt, Sungryong Hong, Yiming Li","submitted_at":"2010-10-03T01:38:32Z","abstract_excerpt":"We use Spitzer 24 $\\mu$m, 70 $\\mu$m and ground based H$\\alpha$ data for a sample of 40 SINGS galaxies to establish a star formation rate (SFR) indicator using 70 $\\mu$m emission for sub--galactic ($\\sim0.05-2\\ \\rm{kpc}$) line-emitting regions and to investigate limits in application. A linear correlation between 70 $\\mu$m and SFR is found and a star formation indicator SFR(70) is proposed for line-emitting sub-galactic regions as $\\rm \\Sigma(SFR)\\ ({M_{\\odot}\\cdot yr^{-1}\\cdot kpc^{-2}})=9.4\\times10^{-44}\\ \\Sigma(70)\\ \\rm{(ergs\\cdot s^{-1}\\cdot kpc^{-2})}$, for regions with $12+\\rm{log(O/H)}\\g"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.0373","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"}