{"paper":{"title":"Empirical constraints on the turbulence in QSO host nebulae from velocity structure function measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Erin Boettcher, Fakhri S. Zahedy, Gwen C. Rudie, Hsiao-Wen Chen, Jennifer I-Hsiu Li, Joop Schaye, Kathy L. Cooksey, Mandy C. Chen, Michael Rauch, Sean D. Johnson, Sebastiano Cantalupo, Zhijie Qu","submitted_at":"2022-09-09T15:06:06Z","abstract_excerpt":"We present the first empirical constraints on the turbulent velocity field of the diffuse circumgalactic medium around four luminous QSOs at $z\\!\\approx\\!0.5$--1.1. Spatially extended nebulae of $\\approx\\!50$--100 physical kpc in diameter centered on the QSOs are revealed in [OII]$\\lambda\\lambda\\,3727,3729$ and/or [OIII]$\\lambda\\,5008$ emission lines in integral field spectroscopic observations obtained using MUSE on the VLT. We measure the second- and third-order velocity structure functions (VSFs) over a range of scales, from $\\lesssim\\!5$ kpc to $\\approx\\!20$--50 kpc, to quantify the turbul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.04344","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2209.04344/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"}