{"paper":{"title":"A Global Photoionization Response to Prompt Emission and Outliers: Different Origin of Long Gamma-ray Bursts?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"D. W. Xu, J. Wang, J. Y. Wei, L. P. Xin, Y. L. Qiu","submitted_at":"2018-02-05T14:33:52Z","abstract_excerpt":"By using the line ratio \\ion{C}{4}$\\lambda1549$/\\ion{C}{2}$\\lambda1335$ as a tracer of ionization ratio of the interstellar medium (ISM) illuminated by a long gamma-ray burst (LGRB), we identify a global photoionization response of the ionization ratio to the photon luminosity of the prompt emission assessed by either $L_{\\mathrm{iso}}/E_{\\mathrm{peak}}$ or $L_{\\mathrm{iso}}/E^2_{\\mathrm{peak}}$. The ionization ratio increases with both $L_{\\mathrm{iso}}/E_{\\mathrm{peak}}$ and $L_{\\mathrm{iso}}/E^2_{\\mathrm{peak}}$ for a majority of the LGRBs in our sample, although there are a few outliers. T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01575","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"}