{"paper":{"title":"Measuring the extragalactic background light from very high energy gamma-ray observations of blazars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Hai-Liang Huang (IHEP, Hong-Hao Zhang (SYSU), Qiang Yuan (IHEP), SYSU), Xiao-Jun Bi (IHEP)","submitted_at":"2012-12-24T06:30:14Z","abstract_excerpt":"The extragalactic background light (EBL) contains important information about stellar and galaxy evolution. It leaves imprint on the very high energy $\\gamma$-ray spectra from sources at cosmological distances due to the process of pair production. In this work we propose to {\\em measure} the EBL directly by extracting the collective attenuation effects in a number of $\\gamma$-ray sources at different redshifts. Using a Markov Chain Monte Carlo fitting method, the EBL intensities and the intrinsic spectral parameters of $\\gamma$-ray sources are derived simultaneously. No prior shape of EBL is "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.5866","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"}