{"paper":{"title":"Fast optical flares from M dwarfs detected by a one-second-cadence survey with Tomo-e Gozen","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Fumihiro Naokawa, Hajime Kawahara, Hanchun Jiang, Kazumi Kashiyama, Ko Arimatsu, Kojiro Kawana, Kotaro Fujisawa, Mamoru Doi, Masataka Aizawa, Naoto Kobayashi, Noriaki Arima, Ryou Ohsawa, Satoshi Takita, Shigeyuki Sako, Shin-ichiro Okumura, Sohei Kondo, Tilman Hartwig, Tomoyuki Tajiri, Toshihiro Kasuga, Toshikazu Shigeyama, Yuki Mori","submitted_at":"2022-06-26T11:18:56Z","abstract_excerpt":"We report a one-second-cadence wide-field survey for M-dwarf flares using the Tomo-e Gozen camera mounted on the Kiso Schmidt telescope. We detect 22 flares from M3-M5 dwarfs with rise times and amplitudes ranging from $5\\, \\mathrm{sec} \\lesssim t_\\mathrm{rise} \\lesssim 100\\,\\mathrm{sec}$ and $0.5 \\lesssim \\Delta F/F_{\\star} \\lesssim 20$, respectively. The flare light curves mostly show steeper rises and shallower decays than those obtained from the Kepler one-minute cadence data and tend to have flat peak structures. Assuming a blackbody spectrum with temperatures of $9,000-15,000\\,\\mathrm{K}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.12847","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2206.12847/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}