{"paper":{"title":"Is BZB J1450+5201 the most distant $\\gamma$-ray BL Lacertae object?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"H. T. Liu, J. G. Wang, J. J. Zhang, J. M. Bai, Liang Chen, N. H. Liao, Ning Jiang, Z. L. Yuan","submitted_at":"2013-12-17T15:45:43Z","abstract_excerpt":"BL Lacertae (BL Lac) objects at high redshifts ($z\\geq 2$) are rarely detected. Through careful analysis of the SDSS spectrum, BZB J1450+5201 is confirmed to be a high-$z$ BL Lac object with $z\\geq$ 2.471 by identifying the Ly$\\alpha$ 1216 and CIV 1548/1550 absorption lines. This indicates that BZB J1450+5201 is the most distant BL Lac object discovered to date. Careful analysis of the five-year \\fermi data of 2FGL J1451.0+5159 shows that its $\\gamma$-ray emission is robust with confidence level of 6.2$\\sigma$ at 1-3 GeV and 6.7$\\sigma$ at 3-10 GeV, and that the confusion of bright neighbor is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.4829","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"}