{"paper":{"title":"The variable ROSAT X-ray spectrum of the BL Lac 0716+714","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Comastri, G.G.C. Palumbo, M. Cappi, R. Della Ceca, S. Molendi, T. Maccacaro","submitted_at":"1994-09-27T12:05:17Z","abstract_excerpt":"The BL Lac object 0716+714 is a powerful flat spectrum radio source detected by CGRO-EGRET at $\\gamma$-ray energies. It has been observed for about 21000 s over two days by the X-ray telescope onboard the ROSAT satellite and strong flux and spectral variations have been detected. In the time scale of two days the source varied by a factor of $\\sim 7$; during a sudden ($\\sim 1000$ s) flux increase, the variation was 70\\%. 0716+714 exhibits spectral variations related to source flux variability which may be attributed to a ``soft excess\" component most prominent when the source was in a low stat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9409068","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"}