磁気圏の昼側頂点:その6300アングストロムの原子酸素放射のトップサイドビュー
Science (New York, N.Y.)
|May 18, 1973
まとめ
ISIS-1l宇宙船の干渉フィルターフォトメーターを使用して,地球の昼側で恒常的な赤いオーロラ帯が発見されました. この昼間のオーロラは,静かな時間に観測される夜間のオーロラよりも明るい.
科学分野:
- 宇宙物理学 宇宙物理学
- 大気科学 大気科学
- 地質物理学 地質物理学とは地質物理学です.
背景:
- イオノスフィアは,地球の宇宙環境において重要な役割を果たしています.
- 原子酸素の排出は,イオノスフィアの過程についての洞察を提供します.
- オーロラディスプレイは,宇宙天候現象の視覚的な表れである.
研究 の 目的:
- イオノスフィアから6300アングストームの地球規模の原子酸素排出量をマッピングする.
- これらの排出物の顕著な特徴を特定し,特徴づけること.
主な方法:
- ISIS-1l宇宙船に搭載された干渉フィルターフォトメーターを利用した.
- 6300アングストームの原子酸素放射のグローバルマップを生成しました.
主要な成果:
- 地球の昼側で,恒常的な赤いオーロラの顕著な帯を観測した.
- この昼のオーロラは,磁気緯度約78度にある磁気正午を中心に位置しています.
- 昼のオーロラは静かな夜のオーロラよりも明るく見えた.
結論:
- 一時的な夜間のオーロラとは異なり,持続的な昼間のオーロラが存在します.
- この発見は,地球の磁気圏とイオン圏の動態を理解するのに役立ちます.
- 恒常的な赤色オーロラは,太陽が照らした半球で進行中のエネルギー粒子の降雨を強調しています.
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