{"paper":{"title":"X-ray and Radio Observations of the gamma Cygni Supernova Remnant G78.2+2.1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"D.A. Leahy, K. Green, S. Ranasinghe","submitted_at":"2013-07-11T15:53:59Z","abstract_excerpt":"We analyse \\textit{ROSAT} and \\textit{Chandra} ACIS X-ray observations and HI absorption spectra of the\n  $\\gamma$ Cygni supernova remnant (G78.2+2.1, DR4). The \\textit{ROSAT} All-Sky-Survey image shows G78.2+2.1 has an adjacent limb-brightened shell north of it. A new \\textit{ROSAT} mosaic shows details of the X-ray emission over the entire face of G78.2+2.1. We also create \\textit{Chandra} mosaics which cover much of the northern rim and central regions of G78.2+2.1. HI absorption spectra result in association of G78.2+2.1 with the $\\gamma$ Cygni nebula, with distance 1.7 to 2.6 kpc. Chandra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3151","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"}