{"paper":{"title":"First Measurements of Black Hole Accretion and Radio-jet Timescales in a Young Quasar at the Edge of Reionization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","physics.space-ph"],"primary_cat":"astro-ph.GA","authors_text":"Anna-Christina Eilers, Bhargav Vaidya, Chiara Mazzucchelli, Chris Carilli, Eduardo Ba\\~nados, Emmanuel Momjian, Frederick B. Davies, Sarah B. Bosman, Sof\\'ia Rojas-Ruiz, Thomas Connor, Yana Khusanova","submitted_at":"2025-03-20T18:00:03Z","abstract_excerpt":"We present the first study dedicated to measuring the timescales for black hole accretion and jet launch in a quasar at the edge of Reionization, PSO J352.4034-15.3373 at z = 5.832 $\\pm$ 0.001. Previous work presented evidence of the strong radio synchrotron emission from the jet affecting the host galaxy dust-dominated continuum emission at $\\nu_{\\rm rest}=683$ GHz ($\\nu_{\\rm obs}=100$ GHz), implying a break in the synchrotron spectrum. In this work, we present quasi-simultaneous observations at 1.5\\, GHz - 42\\,GHz with the Karl G. Jansky Very Large Array (VLA), and derive a frequency break a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.16609","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2503.16609/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}