{"paper":{"title":"Thomson Thick X-ray Absorption in a Broad Absorption Line Quasar PG0946+301","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. M. Peterson, D. C. Hines, F. Hamann, I. Shlosman, J. Shields, K. Korista, M. Brotherton, M. Crenshaw, M. deKool, M. Elvis, M. Voit, N. Arav, P. J. Green, R. W. Goodrich, S. Mathur, V. Kashyap, W. van Breugel","submitted_at":"2000-02-02T16:20:38Z","abstract_excerpt":"We present a deep ASCA observation of a Broad\n Absorption Line Quasar (BALQSO) PG0946+301. The source was clearly detected in one of the gas imaging spectrometers, but not in any other detector. If BALQSOs have intrinsic X-ray spectra similar to normal radio-quiet quasars, our observations imply that there is Thomson thick X-ray absorption (N_H >~10^{24} cm^{-2}) toward\n PG0946+301. This is the largest column density estimated so far toward a BALQSO. The absorber must be at least partially ionized and may be responsible for attenuation in the optical and UV. If the\n Thomson optical depth towar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0002054","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"}