{"paper":{"title":"Discovery of strong Iron K{\\alpha} emitting Compton thick quasars at z=2.5 and 2.9","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"C. Feruglio, C. Malacaria, D. M. Alexander, E. Daddi, E. Piconcelli, F. Fiore","submitted_at":"2011-01-18T15:33:14Z","abstract_excerpt":"We report the detection of the 6.4 keV Iron K{\\alpha} emission line in two infrared-luminous, massive, star-forming BzK galaxies at z = 2.578 and z = 2.90 in the CDF-S. The Chandra 4 Ms spectra of BzK4892 and BzK8608 show a reflection dominated continuum with strong Iron lines, with rest-frame equivalent widths EW-2.3 keV and 1.2 keV, respectively, demonstrating Compton thick obscuration of the central AGN. For BzK8608 the line identification closely matches the existing photometric redshift derived from the stellar emission. We use the observed luminosities of the Iron K{\\alpha} line, of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.3478","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"}