{"paper":{"title":"Photometric Observations of Supernova 2013cq Associated with GRB 130427A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Cucchiara, A. M. Watson, A. S. Kutyrev, C. G. Rom\\'an-Z\\'u\\~niga, E. Ramirez-Ruiz, E. Troja, J. A. de Diego, J. I. Capone, J. J. Gonz\\'alez, J. S. Bloom, J. X. Prochaska, L. N. Georgiev, M. G. Richer, N. Fraija, N. Gehrels, N. R. Butler, O. D. Fox, O. M. Littlejohns, R. L. Becerra, V. L. Toy, W. H. Lee","submitted_at":"2017-02-15T20:23:40Z","abstract_excerpt":"We observed the afterglow of GRB 130427A with the RATIR instrument on the 1.5-m Harold L. Johnson telescope of the Observatorio Astron\\'omico Nacional on Sierra San Pedro M\\'artir. Our homogenous $griZYJH$ photometry extends from the night of burst to three years later. We fit a model for the afterglow. There is a significant positive residual which matches the behavior of SN 1998bw in the $griZ$ filters; we suggest that this is a photometric signature of the supernova SN 2013cq associated with the GRB. The peak absolute magnitude of the supernova is $M_r=-18.43\\pm0.11$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.04762","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"}