{"paper":{"title":"Long-term monitoring of the short period SU UMa-type dwarf nova, V844 Herculis","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Akira Imada, Daisaku Nogami, Hiroyuki Maehara, Hiroyuki Yamamoto, Kaori Kubota, Kazuhiro Nakajima, Kei Sugiyasu, Ken'ichi Torii, Kenji Tanabe, Kie Kodama, Koichi Morikawa, Makoto Uemura, Miho Suzuki, Pavol A. Dubovsky, Ryoko Ishioka, Shota Oizumi, Shunsuke Tanada, Taichi Kato, Takeshi Matsuo, Tatsuki Yasuda, Toshihiro Omodaka, Yoshihiro Arao","submitted_at":"2007-02-28T18:28:25Z","abstract_excerpt":"We report on time-resolved CCD photometry of four outbursts of a short-period SU UMa-type dwarf nova, V844 Herculis. We successfully determined the mean superhump periods to be 0.05584(64) days, and 0.055883(3) for the 2002 May superoutburst, and the 2006 April-May superoutburst, respectively. During the 2002 October observations, we confirmed that the outburst is a normal outburst, which is the first recorded normal outburst in V844 Her. We also examined superhump period changes during 2002 May and 2006 April-May superoutbursts, both of which showed increasing superhump period over the course"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0702752","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"}