{"paper":{"title":"HI angular momentum mass relation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jayaram N. Chengalur, Marc A.W. Verheijen, Sushma Kurapati","submitted_at":"2021-07-28T20:29:44Z","abstract_excerpt":"We study the relationship between the H{\\sc i} specific angular momentum (j$_{\\rm g}$) and the H{\\sc i} mass (M$_{\\rm g}$) for a sample of galaxies with well measured H{\\sc i} rotation curves. We find that the relation is well described by an unbroken power law \\jg $\\propto$ \\mg$^{\\alpha}$ over the entire mass range (10$^{7}$-10$^{10.5}$ M$_{\\odot}$), with $\\alpha = 0.89 \\pm 0.05$ (scatter 0.18 dex). This is in reasonable agreement with models which assume that evolutionary processes maintain H{\\sc i} disks in a marginally stable state. The slope we observe is also significantly different from"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.13630","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2107.13630/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}