{"paper":{"title":"Are the X-ray Spectra of Flat-spectrum Radio Quasars and BL Lacertae Objects Different?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) SAX/SDC, 3) ((1) Dip. di Fisica, (3) Osservatorio Astronomico di Roma), ASI, Fabrizio Fiore (2, II Universita' di Roma, Paolo Giommi (2), Paolo Padovani (1), Roma","submitted_at":"1996-10-14T11:03:05Z","abstract_excerpt":"We study the X-ray spectra of 114 flat-spectrum radio quasars (FSRQ) using the hardness ratios as given in the WGA catalogue of ROSAT sources. This sample includes all WGA FSRQ with high-quality data and comprises about 20 per cent of presently known such objects, which makes this the largest FSRQ sample ever studied in the X-ray band. We find that FSRQ have a distribution of energy spectral indices ranging between 0 and 3 with a mean value alpha_x ~ 1. This is consistent with that of low-energy cutoff BL Lacs (LBL; alpha_x ~ 1.1), generally found in radio surveys, but significantly different "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9610093","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"}