{"paper":{"title":"SDSS-IV MaNGA: Stellar population correlates with stellar root-mean-square velocity $V_{\\rm rms}$ gradients or total-density-profile slopes at fixed effective velocity dispersion $\\sigma_{\\rm e}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Junqiang Ge, Michele Cappellari, Ran Li, Shengdong Lu, Shude Mao","submitted_at":"2020-03-30T17:00:39Z","abstract_excerpt":"Galaxy properties are known to correlate most tightly with the galaxy effective stellar velocity dispersion $\\sigma_{\\rm e}$. Here we look for {\\em additional} trends at fixed $\\sigma_{\\rm e}$ using 1339 galaxies ($M_\\ast \\gtrsim 6\\times10^9$ M$_\\odot$) with different morphologies in the MaNGA (DR14) sample with integral-field spectroscopy data. We focus on the gradients ($\\gamma_{\\rm rms} \\equiv \\sigma(R_{\\rm e}/4)/\\sigma_{\\rm e}$) of the stellar root-mean-square velocity ($V_{\\rm rms} \\equiv \\sqrt{V^2 + \\sigma^2}$), which we show traces the total mass density gradient $\\gamma_{\\rm tot}$ deri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.13625","kind":"arxiv","version":3},"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/2003.13625/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"}