{"paper":{"title":"Relationship between the Line Width of the Atomic and Molecular ISM in M33","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Adam Leroy, Amanda Kepley, Andreas Schruba, Eric W. Koch, Erik W. Rosolowsky, Jonathan Braine, Julianne Dalcanton, Megan C. Johnson","submitted_at":"2019-02-13T16:57:21Z","abstract_excerpt":"We investigate how the spectral properties of atomic (HI) and molecular (H$_2$) gas, traced by CO(2-1), are related in M33 on $80$ pc scales. We find the HI and CO(2-1) velocity at peak intensity to be highly correlated, consistent with previous studies. By stacking spectra aligned to the velocity of HI peak intensity, we find that the CO line width ($\\sigma_{\\rm HWHM}=4.6\\pm0.9$ km s$^{-1}$; $\\sigma_{\\rm HWHM}$ is the effective Gaussian width) is consistently smaller than the HI line width ($\\sigma_{\\rm HWHM}=6.6\\pm0.1$ km s$^{-1}$), with a ratio of ${\\sim}0.7$, in agreement with Druard et al"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.05007","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"}