{"paper":{"title":"Star Formation in NGC 5194 (M51a). II. The Spatially-Resolved Star Formation Law","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Bruce T. Draine, Caroline Bot, Charles W. Engelbracht, Daniela Calzetti, Daniel A. Dale, David J. Hollenbach, Duilia de Mello, Elias Brinks, Eric J. Murphy, Erwin de Blok, Fabian Walter, George Bendo, George Helou, J.D.T. Smith, John Moustakas, Karl D. Gordon, Kartik Sheth, Lee Armus, Martin Meyer, Michael W. Regan, Michele D. Thornley, Moire K.M. Prescott, Robert C. Kennicutt Jr.","submitted_at":"2007-08-07T11:04:53Z","abstract_excerpt":"We have studied the relationship between the star formation rate (SFR) surface density and gas surface density in the spiral galaxy M51a (NGC 5194), using multi-wavelength data obtained as part of the Spitzer Infrared Nearby Galaxies Survey (SINGS). We introduce a new SFR index based on a linear combination of H-alpha emission-line and 24 micron continuum luminosities, that provides reliable extinction-corrected ionizing fluxes and SFR densities over a wide range of dust attenuations. The combination of these extinction-corrected SFR densities with aperture synthesis HI and CO maps has allowed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0708.0922","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"}