{"paper":{"title":"DES J0454-4448: Discovery of the First Luminous z > 6 Quasar from the Dark Energy Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"A. Benoit-Levy, A. Carnero Rosell, A. E. Evrard, A. Fausti Neto, A. Plazas, A. Roodman, A. Walker, B. Nord, B. Santiago, C. E Cunha, C. Smith, C. \\v{D}Andrea, D. A. Finley, D. Burke, D. Gruen, D. James, D. L. DePoy, D. Thomas, D. Tucker, E. Bertin, E. Buckley-Geer, E. Gonzalez-Solares, E. Rykoff, E. Sanchez, E. Suchyta, F. B. Abdalla, F. Ostrovski, G. D. Becker, G. Tarle, H. T. Diehl, I. Sevilla, J. Estrada, J. Frieman, J. Marshall, J. Mohr, K. Honscheid, K. Kuehn, K. Merritt, K. Romer, L. N. da Costa, M. A. G. Maia, M. Banerji, M. E. C. Swanson, M. Makler, M. Rauch, M. Sako, M. Schubnell, M. Soares-Santos, N. Kuropatkin, O. Lahav, P. Doel, P. Fosalba, P. Martini, R. G. McMahon, R. H. Wechsler, R. Miquel, R. Ogando, S. Allam, S. Desai, S. Kent, S. L. Reed, T. Abbott","submitted_at":"2015-04-13T17:24:33Z","abstract_excerpt":"We present the first results of a survey for high redshift, z $\\ge$ 6, quasars using izY multi-colour photometric observations from the Dark Energy Survey (DES). Here we report the discovery and spectroscopic confirmation of the $\\rm z_{AB}, Y_{AB}$ = 20.2, 20.2 (M$_{1450}$ = $-$26.5) quasar DES J0454$-$4448 with an emission line redshift of z = 6.10$\\pm$0.03 and a HI near zone size of 4.6 $\\pm$ 1.7 Mpc.The quasar was selected as an i-band drop out with i$-$z = 2.46 and z$_{AB} < 21.5$ from an area of $\\rm \\sim$300 deg$^2$. It is the brightest of our 43 candidates and was identified for follow"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.03264","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":""},"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"}