{"paper":{"title":"Radiative Efficiency of Disk Accretion in Individual SDSS QSOs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"Fupeng Zhang, Shumei Wu, Ye Lu (NAOC), Youjun Lu","submitted_at":"2013-10-02T03:52:21Z","abstract_excerpt":"We estimate the radiative efficiency (epsilon) of individual type 1 SDSS QSOs by using their bolometric luminosities (L_{bol}) and accretion rates (\\dot{M}_{\\bullet,acc}), which may be related to the assembly histories and spins of the central massive black holes (MBHs). We estimate L_{bol} by using the empirical spectral energy distributions of QSOs and \\dot{M}_{\\bullet,acc} by fitting the observed optical luminosity(/-ies) with the thin accretion disk model, assuming the MBH masses given by the virial mass estimator(s) (M_{\\bullet,vir}). We find an apparent correlation between epsilon and M_"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.0560","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"}