{"paper":{"title":"Measuring subhalo mass in redMaPPer clusters with CFHT Stripe 82 Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alexie Leauthaud, Bruno Moraes, Eduardo Rozo, Eli Rykoff, Houjun Mo, Huanyuan Shan, Jean-Paul Kneib, John Moustakas, Lizhi Xie, Ludovic Van Waerbeke, Martin Makler, Ran Li, Thomas Erben","submitted_at":"2015-07-06T13:58:44Z","abstract_excerpt":"We use the shear catalog from the CFHT Stripe-82 Survey to measure the subhalo masses of satellite galaxies in redMaPPer clusters. Assuming a Chabrier Initial Mass Function (IMF) and a truncated NFW model for the subhalo mass distribution, we find that the sub-halo mass to galaxy stellar mass ratio increases as a function of projected halo-centric radius $r_p$, from $M_{\\rm sub}/M_{\\rm star}=4.43^{+ 6.63}_{- 2.23}$ at $r_p \\in [0.1,0.3]$ $h^{-1}Mpc$ to $M_{\\rm sub}/M_{\\rm star}=75.40^{+ 19.73}_{- 19.09}$ at $r_p \\in [0.6,0.9]$ $h^{-1}Mpc$. We also investigate the dependence of subhalo masses o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01464","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"}