Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1984-07-01 |
タイトル |
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言語 |
en |
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タイトル |
Auroral zone X-ray pulsations associated with VLF pulsations: B15-3N balloon experiment |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
著者名(英) |
Yamagishi, Hisao
Ono, Takayuki
Fukunishi, Hiroshi
Yamagami, Takamasa
Nishimura, Jun
Kodama, Masahiro
Hirasima, Yo
Murakami, Hiroyuki
Holtet, Jan A.
Ullaland, Stein
Pellinen, Risto J.
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著者所属(英) |
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en |
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National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research/The Institute of Space and Astronautical Science/The Institute of Space and Astronautical Science/Department of Physics, Yamanashi Medical College/Department of Physics, Rikkyo University/Department of Physics, Rikkyo University/Institute of Physics, University of Oslo/Department of Physics, University of Bergen/Finnish Meteorological Institute |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
A stratospheric balloon, carrying a Nal (T1) scintillation counter for measuring 20-100keV bremsstrahlung X-rays was launched from Stamsund (L=5.6) in Norway during the recovery phase of a magnetic substorm. The scintillation counter recorded many examples of X-ray microbursts and pulsations at a ceiling altitude of 7mb (33km). The ground-based VLF receiver at Andφya (L=6.1), located at 160km northeast of Stamsund, and at Syowa Station, Antarctica (L=6.1) observed polar chorus emissions and quasi-periodic (QP) emissions during the balloon flight. In the study of cross correlations between the X-ray and the VLF emissions, it has been found that the X-ray microbursts precede VLF chorus at Andφya by about 1.7s, while the VLF chorus at Syowa occurred almost simultaneously with the X-ray microbursts. This is qualitatively explained by the nature of counterstreaming type wave-particle interaction and the echoing of whistler mode wave packets in the magnetosphere. X-ray pulsations and rising-tone type QP emissions with periods of 20-30s showed a good coherency. This similarity suggests that both phenomena are closely related to each other through the cyclotron wave-particle interaction in the magnetosphere. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00733561 |
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue
巻 31,
p. 124-136,
発行日 1984-07
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