{"paper":{"title":"The Highest Redshift Quasar at $z=7.085$: A Radio Quiet Source","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"B. Venemans, C. L. Carilli, E. Momjian, F. Walter","submitted_at":"2013-10-29T20:37:20Z","abstract_excerpt":"We present 1-2 GHz Very Large Array A-configuration continuum observations on the highest redshift quasar known to date, the $z=7.085$ quasar ULAS J112001.48+064124.3. The results show no radio continuum emission at the optical position of the quasar or its vicinity at a level of $\\geq 3\\sigma$ or $23.1 \\mu$Jy beam$^{-1}$. This $3\\sigma$ limit corresponds to a rest frame 1.4 GHz luminosity density limit of $L_{\\nu,1.4\\,GHz} < 1.76 \\times 10^{24}$ W Hz$^{-1}$ for a spectral index of $\\alpha=0$, and $L_{\\nu,1.4\\,GHz} < 1.42 \\times 10^{25}$ W Hz$^{-1}$ for a spectral index of $\\alpha=-1$. The res"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.7960","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"}