{"paper":{"title":"Measuring dark energy with the $E_{\\rm iso}-E_{\\rm p}$ correlation of gamma-ray bursts using model-independent methods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"F. Y. Wang (NJU), J. S. Wang, K. S. Cheng (HKU), Z. G. Dai (NJU)","submitted_at":"2015-09-29T02:09:38Z","abstract_excerpt":"In this paper, we use two model-independent methods to standardize long gamma-ray bursts (GRBs) using the $E_{\\rm iso}-E_{\\rm p}$ correlation, where $E_{\\rm iso}$ is the isotropic-equivalent gamma-ray energy and $E_{\\rm p}$ is the spectral peak energy. We update 42 long GRBs and try to make constraint on cosmological parameters. The full sample contains 151 long GRBs with redshifts from 0.0331 to 8.2. The first method is the simultaneous fitting method. The extrinsic scatter $\\sigma_{\\rm ext}$ is taken into account and assigned to the parameter $E_{\\rm iso}$. The best-fitting values are $a=49."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08558","kind":"arxiv","version":2},"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"}