{"paper":{"title":"The bulge-halo conspiracy in massive elliptical galaxies: implications for the stellar initial mass function and halo response to baryonic processes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.SR"],"primary_cat":"astro-ph.CO","authors_text":"Aaron A. Dutton (MPIA), Tommaso Treu (UCSB)","submitted_at":"2013-03-18T20:00:01Z","abstract_excerpt":"Recent studies have shown that massive elliptical galaxies have total mass density profiles within an effective radius that can be approximated as \\rho_{tot}\\propto r^{-\\gamma'}, with mean slope <\\gamma'>=2.08 \\pm 0.03 and scatter \\sigma_\\gamma'=0.16 \\pm 0.02. The small scatter of the slope (known as the bulge-halo conspiracy) is not generic in LCDM based models and therefore contains information about the galaxy formation process. We compute the distribution of \\gamma' for LCDM-based models that reproduce the observed correlations between stellar mass, velocity dispersion, and effective radiu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4389","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"}