{"paper":{"title":"Precursors and Outbursts of A 0535+26 in 2009-2011 observed by the MAXI/GSC and the Swift/BAT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"(2) Cosmic Radiation, (3) Department of Physics, 4, (4) Department of Physics, 5) ((1) School of Dentistry at Matsudo, (5) Research Center for the Early Universe, Kazuo Makishima (2, Masaru Matsuoka (2), Motoki Nakajima (1), Motoko Serino (2), Mutsumi Sugizaki (2), Nihon University, Nobuyuki Kawai (3), RIKEN, Tatehiro Mihara (2), Tokyo Institute of Technology, University of Tokyo, University of Tokyo)","submitted_at":"2013-08-26T07:13:19Z","abstract_excerpt":"Over the 3-year active period from 2008 September to 2011 November, the outburst behavior of the Be/X-ray binary A 0535+26 was continuously monitored with the MAXI/GSC and the Swift/BAT. The source exhibited nine outbursts, every binary revolution of 111.1 days, of which two are categorized into the giant (type-II) outbursts. The recurrence period of these outbursts is found to be $\\sim115$ days, significantly longer than the orbital period of 111.1 days. With the MAXI/GSC, a low-level active period, or a \"precursor\", was detected prior to at least four giant outbursts. The precursor recurrenc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5498","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"}