{"paper":{"title":"GRB970228 and a class of GRBs with an initial spikelike emission","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Carlo Luciano Bianco, Letizia Caito, Maria Giovanna Dainotti, Maria Grazia Bernardini, Remo Ruffini, Roberto Guida","submitted_at":"2007-09-05T13:43:33Z","abstract_excerpt":"(Shortened) The Swift and HETE-2 discovery of an afterglow associated possibly with short GRBs opened the new problematic of their nature and classification. This has been further enhanced by the GRB060614 observation and by a re-analysis of the BATSE catalog leading to the identification of a new GRB class with \"an occasional softer extended emission lasting tenths of seconds after an initial spikelike emission\". We plan: a) to fit this new class of \"hybrid\" sources within our \"canonical GRB\" scenario, where all GRBs are generated by a \"common engine\" (i.e. the gravitational collapse to a bla"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0709.0651","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"}