{"paper":{"title":"An Extremely Red Nucleus in an Absorbed QSO at z=0.65","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Kouji Ohta (Kyoto Univ.), Masayuki Akiyama (Subaru Telescope, NAOJ)","submitted_at":"2000-12-27T05:55:32Z","abstract_excerpt":"The results of K-band-imaging observations of a candidate of an absorbed QSO at z=0.653, AX J131831+3341, are presented. The B-K color of the object is 4.85 mag, which is much redder than optically-selected QSOs. The K-band image shows nuclear and extended components, the same as in the optical V-, R-, and I-band images. The nuclear component (I-K = 4.29 mag) is much redder than the power-law models with energy indices of 0 to -1.0, which well reproduce the V-R and R-I optical colors of the nuclear component. A heavily absorbed (A_V = 3 mag) nucleus may emerge in the K-band, while optical ligh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0012502","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"}