{"paper":{"title":"ALMA Observations toward the starburst dwarf galaxy NGC 5253: I. Molecular cloud properties and scaling relations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Akihiko Hirota, Daniel Espada, George J. Bendo, Hajime Sugai, Kouichiro Nakanishi, Rie E. Miura","submitted_at":"2018-08-30T02:33:34Z","abstract_excerpt":"We present high-spatial-resolution ($\\sim 0\\farcs2$, or $\\sim$3\\,pc) CO(2--1) observations of the nearest young starburst dwarf galaxy, NGC\\,5253, taken with the Atacama Large Millimeter/submillimeter Array. We have identified 118 molecular clouds with average values of 4.3\\,pc in radius and 2.2\\,\\kms\\, in velocity dispersion, which comprise the molecular cloud complexes observed previously with $\\sim$100\\,pc resolution. We derive for the first time in this galaxy the $I{\\rm (CO)}$--$N$(H$_2$) conversion factor, $X$ = $4.1^{+5.9}_{-2.4}\\times10^{20}$\\,cm$^{-2}$(K\\,\\kms)$^{-1}$, based on the vi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.10089","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"}