{"paper":{"title":"Suzaku discovery of iron absorption lines in outburst spectra of the X-ray transient 4U 1630-472","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Andrew C. Fabian (Cambridge university), Aya Kubota (RIKEN), Chris Done (Durham university), Hiromitsu Takahashi, Jean Cottam (NASA/GSFC), Kazuo Makishima (University of Tokyo, Kazutaka Yamaoka (Aoyama university), Lorella Angelini (NASA/GSFC), RIKEN), Shinya Yamada (University of Tokyo), Tadayasu Dotani (ISAS/JAXA), Takayoshi Kohmura (Kogakuin university), Taro Kotani (Tokyo-tech), Tomonori Yasuda, Yasushi Fukazawa (Hiroshima university), Yoshihiro Ueda (Kyoto University)","submitted_at":"2006-10-17T04:37:12Z","abstract_excerpt":"We present the results of six Suzaku observations of the recurrent black hole transient 4U1630-472 during its decline from outburst from February 8 to March 23 in 2006. All observations show the typical high/soft state spectral shape in the 2-50keV band, roughly described by an optically thick disk spectrum in the soft energy band plus a weak power-law tail that becomes dominant only above \\~20keV. The disk temperature decreases from 1.4keV to 1.2keV as the flux decreases by a factor 2, consistent with a constant radius as expected for disk-dominated spectra. All the observations reveal signif"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0610496","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"}