{"paper":{"title":"Observational evidence of galaxy assembly bias","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Adam S. Bolton, Alberto Dominguez, Anatoly Klypin, Anna Niemiec, Antonio D. Montero-Dorta, Enrique Perez, Eric Jullo, Francisco Prada, Ginevra Favole, Roberto Cid Fernandes, Rosa Gonzalez-Delgado, Ruben Garcia-Benito, Sergio Rodriguez-Torres","submitted_at":"2017-04-28T18:00:12Z","abstract_excerpt":"We analyze the spectra of 300,000 luminous red galaxies (LRGs) with stellar masses $M_* \\gtrsim 10^{11} M_{\\odot}$ from the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS). By studying their star-formation histories, we find two main evolutionary paths converging into the same quiescent galaxy population at $z\\sim0.55$. Fast-growing LRGs assemble $80\\%$ of their stellar mass very early on ($z\\sim5$), whereas slow-growing LRGs reach the same evolutionary state at $z\\sim1.5$. Further investigation reveals that their clustering properties on scales of $\\sim$1-30 Mpc are, at a high level o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.00013","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"}