{"paper":{"title":"A Photometric Redshift of z ~ 9.4 for GRB 090429B","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Cucchiara, A. Fritz, A. J. Levan, A. K\\\"upc\\\"u Yolda\\c{s}, A. M. Soderberg, A. Rowlinson, A. S. Fruchter, A. Stephens, B. P. Schmidt, C. Wolf, D. B. Fox, D. Malesani, E. Berger, F. Olivares E., J. Greiner, J. Hjorth, J.P.U. Fynbo, J. Rhoads, K. Roth, K. Toma, K. Wiersema, L. Amati, M. A. Dopita, N. R. Tanvir, P. D'Avanzo, P. Jakobsson, P. Podsiadlowski, P. T. O'Brien, R. E. Rutledge, R. J. Foley, R. Willingale, S. R. Kulkarni, T. Kr\\\"uhler, T. N. Ukwatta, T. Sakamoto, X. F. Wu","submitted_at":"2011-05-25T01:08:54Z","abstract_excerpt":"Gamma-ray bursts (GRBs) serve as powerful probes of the early Universe, with their luminous afterglows revealing the locations and physical properties of star forming galaxies at the highest redshifts, and potentially locating first generation (Population III) stars. Since GRB afterglows have intrinsically very simple spectra, they allow robust redshifts from low signal to noise spectroscopy, or photometry. Here we present a photometric redshift of z~9.4 for the Swift-detected GRB 090429B based on deep observations with Gemini-North, the Very Large Telescope, and the GRB Optical and Near-infra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4915","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"}