{"paper":{"title":"Shape and kinematics of elliptical galaxies: evolution due to merging at z < 1.5","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. C\\'esar Gonz\\'alez-Garc\\'ia, Jos\\'e O\\~norbe, M. \\'Angeles G\\'omez-Flechoso, Rosa Dom\\'inguez-Tenreiro","submitted_at":"2008-12-23T18:13:16Z","abstract_excerpt":"Aims:In this study we investigate the evolution of shape and kinematics of elliptical galaxies in a cosmological framework.\n  Methods: We use a set of hydrodynamic, self-consistent simulations operating in the context of a concordance cosmological model where relaxed elliptical-like objects (ELOs) were identified at redshifts z=0, z=0.5, z=1 and z=1.5.\n  Results: The population of elliptical systems analysed here present a systematic change through time, i.e. evolution, by becoming rounder in general at z=0 and, at the same time more velocity dispersion supported. This is found to be primarily"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.4306","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"}