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Effect of Morphological Asymmetry between Leading and Following Sunspots on the Prediction of Solar Cycle Activity
http://hdl.handle.net/2237/00031200
http://hdl.handle.net/2237/000312003afbf2d9-c975-4ff4-bf7b-542769081be0
名前 / ファイル | ライセンス | アクション |
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Iijima_2019_ApJ_883_24 (1.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-01-17 | |||||
タイトル | ||||||
タイトル | Effect of Morphological Asymmetry between Leading and Following Sunspots on the Prediction of Solar Cycle Activity | |||||
言語 | en | |||||
著者 |
Iijima, H.
× Iijima, H.× Hotta, H.× Imada, S. |
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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 | © 2019. The American Astronomical Society | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Sun: activity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Sun: photosphere | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | sunspots | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The morphological asymmetry of leading and following sunspots is a well-known characteristic of the solar surface. In the context of the large-scale evolution of the surface magnetic field, the asymmetry has been assumed to have only a negligible effect. Using the surface flux transport (SFT) model, we show that the morphological asymmetry of leading and following sunspots has a significant impact on the evolution of the large-scale magnetic field on the solar surface. By evaluating the effect of the morphological asymmetry of each bipolar magnetic region (BMR), we observe that the introduction of asymmetry to the BMR model significantly reduces the contribution to the polar magnetic field, especially for large and high-latitude BMRs. Strongly asymmetric BMRs can even reverse regular polar field formation. The SFT simulations based on the observed sunspot record show that the introduction of morphological asymmetry reduces the root-mean-square difference from the observed axial dipole strength by 30%–40%. These results indicate that the morphological asymmetry of leading and following sunspots has a significant effect on the solar cycle prediction. | |||||
言語 | en | |||||
出版者 | ||||||
出版者 | IOP publishing | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | 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/ab3b04 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1538-4357 | |||||
書誌情報 |
en : The Astrophysical Journal 巻 883, 号 1, p. 24, 発行日 2019-09 |
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著者版フラグ | ||||||
値 | publisher |