{"paper":{"title":"Reverberation mapping of narrow-line Seyfert 1 galaxy I Zwicky 1: black hole mass","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Chen Hu, Jian-Min Wang, Jin-Ming Bai, Kai Wang, Kai-Xing Lu, Luis C. Ho, Pu Du, Wei-Hao Bian, Yan-Rong Li, Ye-Fei Yuan, Ying-Ke Huang, Yue Zhang, Yu-Lin Zhao, Zhi-Xiang Zhang","submitted_at":"2019-04-12T10:31:48Z","abstract_excerpt":"We report results of the first reverberation mapping campaign of I Zwicky 1 during $2014$-$2016$, which showed unambiguous reverberations of the broad H$\\beta$ line emission to the varying optical continuum. From analysis using several methods, we obtain a reverberation lag of $\\tau_{\\rm H\\beta}=37.2^{+4.5}_{-4.9}\\,$ days. Taking a virial factor of $f_{_{\\rm BLR}}=1$, we find a black hole mass of $M_{\\bullet}=9.30_{-1.38}^{+1.26}\\times 10^6 M_{\\odot}$ from the mean spectra. The accretion rate is estimated to be $203.9_{-65.8}^{+61.0}\\,L_{\\rm Edd}c^{-2}$, suggesting a super-Eddington accretor, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.06146","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"}