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  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. 名古屋大学加速器質量分析計業績報告書
  4. 20

年輪中^<14>C 濃度測定による紀元前4 世紀太陽活動極小期における太陽活動周期の研究

https://doi.org/10.18999/sumrua.20.145
https://doi.org/10.18999/sumrua.20.145
872a80be-7ba2-446a-9c71-8f27ff75480f
名前 / ファイル ライセンス アクション
nagaya2008.pdf nagaya2008.pdf (10.4 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2011-05-02
タイトル
タイトル 年輪中^<14>C 濃度測定による紀元前4 世紀太陽活動極小期における太陽活動周期の研究
言語 ja
その他のタイトル
その他のタイトル Variation of the solar cycle length during the grand solar minimum in the 4^th century B.C. deduced from ^<14>C contents in Japanese camphor tree rings
言語 en
著者 永冶, 健太朗

× 永冶, 健太朗

WEKO 82922

ja 永冶, 健太朗

Search repository
増田, 公明

× 増田, 公明

WEKO 82923

ja 増田, 公明

Search repository
中村, 俊夫

× 中村, 俊夫

WEKO 82924

ja 中村, 俊夫

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宮原, ひろ子

× 宮原, ひろ子

WEKO 82925

ja 宮原, ひろ子

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松崎, 浩之

× 松崎, 浩之

WEKO 82926

ja 松崎, 浩之

Search repository
村木, 綏

× 村木, 綏

WEKO 82927

ja 村木, 綏

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Nagaya, Kentaro

× Nagaya, Kentaro

WEKO 82928

en Nagaya, Kentaro

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Masuda, Kimiaki

× Masuda, Kimiaki

WEKO 82929

en Masuda, Kimiaki

Search repository
Nakamura, Toshio

× Nakamura, Toshio

WEKO 82930

en Nakamura, Toshio

Search repository
Miyahara, Hiroko

× Miyahara, Hiroko

WEKO 82931

en Miyahara, Hiroko

Search repository
Mtsuzaki, Hiroyuki

× Mtsuzaki, Hiroyuki

WEKO 82932

en Mtsuzaki, Hiroyuki

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Muraki, Yasushi

× Muraki, Yasushi

WEKO 82933

en Muraki, Yasushi

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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
抄録
内容記述 Variation of the sunspot number, which reflects solar activity, has shown the periodicity of around 11-year since the early 18th century. However, in the period of 1645 to 1715 AD sunspots were almost absent, and this period is called the Maunder Minimum, one of grand solar minima implying weak solar activity. Variation of solar activity in grand solar minima can be investigated by determining the concentration of cosmogenic isotope ^<14>C in annual tree rings. We previously obtained the ^<14>C records of1413 to 1745 AD including the Spoerer Minimum (1416-1534 AD) and the Maunder Minimum with annual time resolution. As a result of frequency analysis of these ^<14>C records, we found that the cycle length of the "11-year cycle" during the Maunder Minimum was around 14 years while that during the Spoerer Minimum was modulating slightly from 11 years. This result suggests that a pattern of the "11-year" cycle length variation depends on a type of minima classified by their duration of estimated sunspot absence. In order to verify this hypothesis, we have measured ^<14>C contents in Japanese camphor tree rings during a possible grand solar minimum in the 4th century B.C. Preliminary result shows the solar cycle length was several years longer than 11 years, as in the Maunder Minimum.
言語 en
内容記述タイプ Abstract
出版者
言語 ja
出版者 名古屋大学年代測定資料研究センター
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ID登録
ID登録 10.18999/sumrua.20.145
ID登録タイプ JaLC
書誌情報 ja : 名古屋大学加速器質量分析計業績報告書

巻 20, p. 145-151, 発行日 2009-03
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