2009 Fiscal Year Final Research Report
Supernovae and Solar Cycles Embedded in an Antarctic Ice Core
| Project/Area Number |
19340050
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
MOTIZUKI Yuko The Institute of Physical and Chemical Research, 櫻井RI物理研究室, 仁科センター研究員 (90332246)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Kazuya 独立行政法人理化学研究所, RI応用チーム, 專任研究員 (70221356)
NAKAI Yoichi 独立行政法人理化学研究所, 櫻井RI物理研究室, 専任研究員 (30260194)
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| Co-Investigator(Renkei-kenkyūsha) |
MAKISHIMA Kazuo 東京大学, 大学院・理学系研究科, 教授 (20126163)
IGARASHI Makoto 独立行政法人理化学研究所, 牧島宇宙放射線研究室, 協力研究員 (50435624)
MOTOYAMA Hideaki 国立極地研究所, 研究教育系, 教授 (20210099)
SUZUKI Keisuke 信州大学, 理学部, 教授 (60145662)
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| Research Collaborator |
BAMBA Aya 独立行政法人宇宙航空研究開発機構, 高エネルギー天文学研究系, 特別研究員 (70392082)
IMAMURA Takashi 国立環境研究所, 大気圏研究領域, 領域長 (60184826)
AKIYOSHI Hideharu 国立環境研究所, 大気圏研究領域, 主任研究員 (80211697)
HORI Akira 北見工業大学, 社会環境工学科, 准教授 (60280856)
KUMAGAI Shiomi 日本大学, 理工学部, 教授 (20271520)
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| Project Period (FY) |
2007 – 2009
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| Keywords | X線天文学 / 太陽物理学 / 超新星爆発 / 極地 / 氷床コア |
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| Research Abstract |
We have performed ion analyses of a shallow ice core drilled in 2001 at the Dome Fuji station, Antarctica. Anions and cations in samples that well exceed over the last 2000 years were analyzed with the temporal resolution of less than 1 year. Using this result, we proposed a new core dating (the depth-age relationship) for 1-1900 AD that is much more precise compared with those reported so far for Dome Fuji ice cores. Applied this new chronology, galactic supernova signals appear to be embedded in the nitrate concentration.
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Research Products
(32 results)
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[Presentation] A Dome Fuji core recording both supernovae and solar cycles2009
Author(s)
望月優子, 高橋和也, 中井陽一, 牧島一夫, 馬場彩, 矢野安重, 五十嵐誠, 本山秀明, 神山孝吉, 鈴木啓助, 今村隆史
Organizer
The 2^nd International Symposium on Dome Fuji Ice Core and Related Topics
Place of Presentation
Tachikawa(Invited talk)
Year and Date
2009-11-20
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[Remarks] 受賞:Yuko Motizuki, Best Oral Presentation at the XXXI SCAR (Scientific Committee on Antarctic Research) Open Science Conference, Buenos Aires, Argentina, Aug.2010
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