{"paper":{"title":"Metals in the z~3 intergalactic medium: results from an ultra-high signal-to-noise ratio UVES quasar spectrum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"A. Rorai, E. Pomante, E. Tescari, E. Vanzella, F. Calura, F. Fontanot, G. Cupani, G. D. Becker, J. Miralda-Escude, M. G. Haehnelt, M. Viel, P. Barai, R. F. Carswell, S. Cristiani, T-S. Kim, V. D'Odorico","submitted_at":"2016-08-22T10:42:29Z","abstract_excerpt":"In this work, we investigate the abundance and distribution of metals in the intergalactic medium (IGM) at $\\langle z \\rangle \\simeq 2.8$ through the analysis of an ultra-high signal-to-noise ratio UVES spectrum of the quasar HE0940-1050. In the CIV forest, our deep spectrum is sensitive at $3\\,\\sigma$ to lines with column density down to $\\log N_{\\rm CIV} \\simeq 11.4$ and in 60 per cent of the considered redshift range down to $\\simeq11.1$. In our sample, all HI lines with $\\log N_{\\rm HI} \\ge 14.8$ show an associated CIV absorption. In the range $14.0 \\le \\log N_{\\rm HI} <14.8$, 43 per cent "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.06116","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"}