{"paper":{"title":"Accurate photometric redshifts for the CFHT Legacy Survey calibrated using the VIMOS VLT Deep Survey","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Bongiorno, A. Cappi, A. Iovino, A. Mazure, A. Pollo, A. Zanichelli, B. Garilli, B. Marano, B. Meneux, C. Adami, C. Marinoni, D. Bottini, D. Maccagni, D. Rizzo, D. Vergani, E. Bertin, E. Zucca, F. Lamareille, G. Busarello, G. Mathez, G. Vettolani, G. Zamorani, H.J. McCracken, I. Gavignaud, J.P. Picat, L. Gregorini, L. Guzzo, L. Pozzetti, L. Tresse, M. Bolzonella, M. Bondi, M. Radovich, M. Scodeggio, O. Cucciati, O. Ilbert, O. Le Fevre, P. Ciliegi, P. Franzetti, P. Merluzzi, R. Merighi, R. Pello, R. Scaramella, S. Arnouts, S. Bardelli, S. Charlot, S. de la Torre, S. Foucaud, S. Paltani, T. Contini, V. Le Brun, V. Ripepi, Y. Mellier","submitted_at":"2006-03-09T01:46:22Z","abstract_excerpt":"We present photometric redshifts for an uniquely large and deep sample of 522286 objects with i'_{AB}<25 in the Canada-France Legacy Survey ``Deep Survey'' fields, which cover a total effective area of 3.2 deg^2. We use 3241 spectroscopic redshifts with 0<z<5 from the VIMOS VLT Deep Survey as a calibration to derive these photometric redshifts. We devise a robust calibration method which removes systematic trends in the photometric redshifts and significantly reduces the fraction of catastrophic errors. We use our unique spectroscopic sample to present a detailed assessment of the robustness o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0603217","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"}