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Evaluation of Applicability of a Flare Trigger Model Based on a Comparison of Geometric Structures
http://hdl.handle.net/2237/00028329
http://hdl.handle.net/2237/000283296c452e6f-9ca0-4c0a-aa5b-a055e47ab32a
名前 / ファイル | ライセンス | アクション |
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Bamba_2018_ApJ_856_43 (2.9 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-07-03 | |||||
タイトル | ||||||
タイトル | Evaluation of Applicability of a Flare Trigger Model Based on a Comparison of Geometric Structures | |||||
言語 | en | |||||
著者 |
Bamba, Yumi
× Bamba, Yumi× Kusano, Kanya |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2018. The American Astronomical Society | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Sun: flares | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Sun: magnetic fields | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | sunspots | |||||
抄録 | ||||||
内容記述 | The triggering mechanism(s) and critical condition(s) of solar flares are still not completely clarified, although various studies have attempted to elucidate them. We have also proposed a theoretical flare-trigger model based on MHD simulations in which two types of small-scale bipole fields, the so-called opposite polarity (OP) and reversed shear (RS), can trigger flares. In this study, we evaluated the applicability of our flare-trigger model to the observation of 32 flares that were observed by the Solar Dynamics Observatory, by focusing on geometrical structures. We classified the events into six types, including the OP and RS types, based on photospheric magnetic field configuration, presence of precursor brightenings, and shape of the initial flare ribbons. As a result, we found that approximately 30% of the flares were consistent with our flare-trigger model, and the number of RS-type triggered flares is larger than that of the OP type. We found that none of the sampled events contradict our flare model; though, we cannot clearly determine the trigger mechanism of 70% of the flares in this study. We carefully investigated the applicability of our flare-trigger model and the possibility that other models can explain the other 70% of the events. Consequently, we concluded that our flare-trigger model has certainly proposed important conditions for flare-triggering. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | IOP publishing | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.3847/1538-4357/aaacd1 | |||||
ISSN | ||||||
収録物識別子タイプ | EISSN | |||||
収録物識別子 | 1538-4357 | |||||
書誌情報 |
en : The Astrophysical Journal 巻 856, 号 1, p. 43, 発行日 2018-03-22 |
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著者版フラグ | ||||||
値 | publisher |