{"paper":{"title":"The first comprehensive study of a giant nebula around a radio-quiet quasar in the $z < 1$ Universe","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Gwen C. Rudie, Hsiao-Wen Chen, Jarle Brinchmann, Jennifer I-Hsiu Li, Joop Schaye, Mandy C. Chen, Michael V. Maseda, Nishant Mishra, Sean D. Johnson, Sebastiano Cantalupo, Sowgat Muzahid, Wolfram Kollatschny, Zhuoqi Will Liu","submitted_at":"2023-08-31T18:00:23Z","abstract_excerpt":"We present the first comprehensive study of a giant, $\\approx \\! \\! 70$ kpc-scale nebula around a radio-quiet quasar at $z<1$. The analysis is based on deep integral field spectroscopy with MUSE of the field of HE$\\,$0238$-$1904, a luminous quasar at $z=0.6282$. The nebula emits strongly in $\\mathrm{[O \\, II]}$, $\\rm H \\beta$, and $\\mathrm{[O \\, III]}$, and the quasar resides in an unusually overdense environment for a radio-quiet system. The environment likely consists of two groups which may be merging, and in total have an estimated dynamical mass of $M_{\\rm dyn}\\approx 4\\times 10^{13}$ to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.00053","kind":"arxiv","version":3},"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/2309.00053/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"}