{"paper":{"title":"Black Hole Mass Estimates and Rapid Growth of Supermassive Black Holes in Luminous $z \\sim$ 3.5 Quasars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Fuyan Bian, Ran Wang, Richard Green, Wenwen Zuo, Xiaohui Fan, Xue-Bing Wu","submitted_at":"2014-12-08T03:52:38Z","abstract_excerpt":"We present new near-infrared (IR) observations of the H$\\beta\\ \\lambda4861$ and MgII $\\lambda2798$ lines for 32 luminous quasars with $3.2<z<3.9$ using the Palomar Hale 200 inch telescope and the Large Binocular Telescope. We find that the MgII Full Width at Half Maximum (FWHM) is well correlated with the H$\\beta$ FWHM, confirming itself as a good substitute for the H$\\beta$ FWHM in the black hole mass estimates. The continuum luminosity at 5100 \\AA\\ well correlates with the continuum luminosity at 3000 \\AA\\ and the broad emission line luminosities (H$\\beta$ and MgII). With simultaneous near-I"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.2438","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"}