{"paper":{"title":"Five-Year Optical and Near Infrared Observations of the Extremely Slow Nova V1280 Scorpii","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Arai, A. Tajitsu, H. Naito, H. Yamaoka, K. Kinugasa, K. Sadakane, M. Fujii, M. Kurita, M. Yamanaka, S. Mizoguchi, S. Narusawa, T. Iijima, T. Nagayama","submitted_at":"2012-03-30T07:26:08Z","abstract_excerpt":"We present optical ($B$, $V$, $R_{\\rm c}$, $I_{\\rm c}$ and $y$) and near infrared ($J$, $H$ and $K_{\\rm s}$) photometric and spectroscopic observations of a classical nova V1280 Scorpii for five years from 2007 to 2011. Our photometric observations show a declining event in optical bands shortly after the maximum light which continues $\\sim$ 250 days. The event is most probably caused by a dust formation. The event is accompanied by a short ($\\sim$ 30 days) re-brightening episode ($\\sim$ 2.5 mag in $V$), which suggests a re-ignition of the surface nuclear burning. After 2008, the $y$ band obse"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.6725","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"}