{"paper":{"title":"Constraints on the evolutionary mechanisms of massive galaxies since $z \\sim 1$ from their velocity dispersions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"A. Hempel, I. Mart\\'in-Navarro, I. Trujillo, J. Falc\\'on-Barroso, J. Gallego, L. Peralta de Arriba, M. Balcells, N. Cardiel, P. G. P\\'erez-Gonz\\'alez, P. S\\'anchez-Bl\\'aquez, R. Guzm\\'an, T. Tapia","submitted_at":"2015-04-02T20:00:38Z","abstract_excerpt":"Several authors have reported that the dynamical masses of massive compact galaxies ($M_\\star \\gtrsim 10^{11} \\ \\mathrm{M_\\odot}$, $r_\\mathrm{e} \\sim 1 \\ \\mathrm{kpc}$), computed as $M_\\mathrm{dyn} = 5.0 \\ \\sigma_\\mathrm{e}^2 r_\\mathrm{e} / G$, are lower than their stellar masses $M_\\star$. In a previous study from our group, the discrepancy is interpreted as a breakdown of the assumption of homology that underlie the $M_\\mathrm{dyn}$ determinations. Here, we present new spectroscopy of six redshift $z \\approx 1.0$ massive compact ellipticals from the Extended Groth Strip, obtained with the 10"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.00678","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":""},"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"}