まとめ
明るい火球は,非常に低い周波数 (VLF) の電磁エネルギーを放出することにより,異常な音を発生させることができます. このエネルギーは,近くの物体の音を刺激し,火球やオーロラに関連した聴覚現象の散発的な報告を説明します.
科学分野:
- 大気物理学 大気物理学
- アコースティクス アコースティクス
- 電磁気学は,電磁気学である.
背景:
- 1978年,ニューサウスウェールズ州の明るい火球の観測者によって異常な音が報告されました.
- 明るい火球は,非常に低い周波数 (VLF) のスペクトルで有意な電磁エネルギーを放出することが知られている.
研究 の 目的:
- 明るい火球に関連した異常な音の原因を調査するために.
- 火球からのVLF排出を音声と結びつけるメカニズムを提案する.
主な方法:
- 火球の観測と関連する音の分析.
- 火球の目覚めにおけるVLF排出量発生の理論モデリング.
- 電気的に誘発された音に対する知覚の値を評価するためのヒト被験者試験.
主要な成果:
- 明るい火球は,かなりのVLF電磁エネルギーを発生します.
- 提案されたメカニズムは,エネルギー的なウェイク・タービュレンスによるVLF排出の発生を説明している.
- VLFによって誘発される音に対する人間の知覚は,表面の音波刺激によって大きく変化します.
結論:
- 火球やオーロラからの異常音の報告の散発的な性質は,VLF電磁気エネルギー,変数伝播,個々の知覚の値によって説明できます.
- この研究は,明るい流星に伴う聴覚現象を理解するための物理的な基礎を提供します.
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