A theory of meteor-induced micropulsations

Jenkins, Alvin W.

doi:10.1029/jz072i009p02301

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…In previous years, there have been many attempts to directly detect low‐frequency radiation from meteors. During the 1960s, attempts to detect the magnetic micropulsations from meteors were performed, but without conclusive results [ Jenkins , 1966; Hawkins , 1958]. The first positive report of a VLF signal correlated to a meteor was given by Watanabe et al [see Keay , 1992a, 1992b].…”

Section: Vlf Emission From Meteors and Theoretical Investigationsmentioning

confidence: 99%

Instrumental recording of electrophonic sounds from Leonid fireballs

et al. 2002

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Electrophonic meteor sounds, heard simultaneously with the meteor appearance, are a longstanding problem due to their nonintuitive nature. Previous investigations have been undermined by lack of instrumental recordings. Here we present the first instrumental detection of electrophonic sounds obtained during the observation of 1998 Leonids from Mongolia. Two Leonid fireballs of brightness −6.5m and −12m produced short, low‐frequency sounds, which were simultaneously recorded by microphones in a special setup and heard by different observers. Simultaneous measurements of electromagnetic ELF/VLF radiation above 500 Hz did not reveal any signal correlated to the electrophonic event. The lack of signal was explained by the low frequency of electrophones. We show that physical characteristics of Leonid electrophones cannot be completely explained by existing theories and that further theoretical refinement and observational work is needed. Finally, we tentatively suggest the possibility of stronger than expected coupling of fireballs with atmospheric charge dynamics and ionosphere.

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Section: Vlf Emission From Meteors and Theoretical Investigationsmentioning

confidence: 99%

Instrumental recording of electrophonic sounds from Leonid fireballs

et al. 2002

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“…In view of the pulse-like nature of this phenomenon, the correlation would be easily established and consequently this model is not considered practical. A more complete discussion of meteor induced micropulsations has been given by Jenkins (1966).…”

Section: Model IImentioning

confidence: 99%