{"paper":{"title":"The growth of brightest cluster galaxies in the TNG300 simulation:dissecting the contributions from mergers and in situ star formation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Aldo Rodr\\'iguez-Puebla, Annalisa Pillepich, Daniel Montenegro-Taborda, Lars Hernquist, Laura V. Sales, Vicente Rodriguez-Gomez, Vladimir Avila-Reese","submitted_at":"2023-02-21T19:00:23Z","abstract_excerpt":"We investigate the formation of brightest cluster galaxies (BCGs) in the TNG300 cosmological simulation of the IllustrisTNG project. Our cluster sample consists of 700 haloes with $M_{200} \\geq 5 \\times 10^{13} \\, \\mathrm{M}_{\\odot}$ at $z=0$, along with their progenitors at earlier epochs. This includes 280 systems with $M_{200} \\geq 10^{14} \\, \\mathrm{M}_{\\odot}$ at $z=0$, as well as three haloes with $M_{200} \\geq 10^{15} \\, \\mathrm{M}_{\\odot}$. We find that the stellar masses and star formation rates of our simulated BCGs are in good agreement with observations at $z \\lesssim 0.4$, and tha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.10943","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2302.10943/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"}