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  1. F300 宇宙地球環境研究所
  2. F300a 雑誌掲載論文
  3. 学術雑誌

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/2237/00031200
3afbf2d9-c975-4ff4-bf7b-542769081be0
名前 / ファイル ライセンス アクション
Iijima_2019_ApJ_883_24.pdf Iijima_2019_ApJ_883_24 (1.5 MB)
Item type 学術雑誌論文 / Journal Article(1)
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.

WEKO 95287

en Iijima, H.

Search repository
Hotta, H.

× Hotta, H.

WEKO 95288

en Hotta, H.

Search repository
Imada, S.

× Imada, S.

WEKO 95289

en Imada, S.

Search repository
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 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
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/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
著者版フラグ
値 publisher
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