{"paper":{"title":"The Many Manifestations of Downsizing: Hierarchical Galaxy Formation Models confront Observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"3), 4), 5), 7) ((1) Max-Planck-Institute fuer Astronomie, Baltimore; (6) INAF-Osservatorio Astronomico di Roma; (7) Dipartimento di Fisica, Fabio Fontanot (1), Gabriella De Lucia (2, Garching; (3) INAF-Osservatorio Astronomico di Trieste; (4) Dipartimento di Astronomia, Heidelberg; (2) Max-Planck-Institute fuer Astrophysik, Paola Santini (6, Pierluigi Monaco (3, Rachel S. Somerville (1, Universita' di Roma \"La Sapienza\"), Universita' di Trieste; (5) Space Telescope Science Institute","submitted_at":"2009-01-08T21:39:35Z","abstract_excerpt":"[abridged] It has been widely claimed that several lines of observational evidence point towards a \"downsizing\" (DS) of the process of galaxy formation over cosmic time. This behavior is sometimes termed \"anti-hierarchical\", and contrasted with the \"bottom-up\" assembly of the dark matter structures in Cold Dark Matter models. In this paper we address three different kinds of observational evidence that have been described as DS: the stellar mass assembly, star formation rate and the ages of the stellar populations in local galaxies. We compare a broad compilation of available data-sets with th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.1130","kind":"arxiv","version":2},"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"}