書誌事項
- タイトル別名
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- デンリソウ ナイ ノ チョウハ , チュウハタイ デンパ ザツオン オヨビ ギンガ デンパ ノ カンソク
- Measurements of LF and MF Radio Noises in the Ionosphere and Galactic Emission
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説明
Rocket observations of radio noises in LF band have been made since 1962. Impulsive noises of 2～50μV/m at 31kc/s (⊿f=1kc/s) observed by K-9 M-6 seem to be realbut their origin is not clear. Noise level at about 100 kc/s seems to be less than 1μV/m at ⊿f=1kc/s in the ionosphere up to 350km. Radio noises in the ionosphere and Galactic emissions were observed at 3 0 Mc/s by L-3H-1. The noise in the ionosphere was maximum near the critical plasma layer at which the equivalent noise temperature was about 10^<70>K (0.2 μV/m at ⊿f=1kc/s), if the noise is due to electromagnetic waves This result is consistent with the excess noises recorded in the measurements of the Galaxy by rockets and satellites in USA and UK. These noises in the MF band, however may be attributed to the electrostatic field of thermal or nonthermal plasma oscillations
資料番号: SA0124933000
収録刊行物
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- 東京大学宇宙航空研究所報告
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東京大学宇宙航空研究所報告 2 (3_B), 1118-1121, 1966-09
東京大学宇宙航空研究所
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詳細情報 詳細情報について
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- CRID
- 1050848249891332224
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- NII論文ID
- 110000196826
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- NII書誌ID
- AN00161914
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- ISSN
- 05638100
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- NDL書誌ID
- 8330008
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- 本文言語コード
- ja
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- 資料種別
- departmental bulletin paper
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- データソース種別
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- IRDB
- NDLサーチ
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