Interplanetary Dust Particles of Micron Size Probably Associated with the Leonid Meteor Stream

Details Interplanetary Dust Particles of Micron Size Probably Associated with the Leonid Meteor Stream Interplanetary Dust Particles of Micron Size Probably Associated with the Leonid Meteor Stream

Dec 1961

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1961jgr....66.3970a&link_type=abstract

Journal of Geophysical Research, vol. 66, issue 11, pp. 3970-3973

Physics

4

Interplanetary Dust, Meteoroid Showers, Microphones, Leonid Meteoroids, Vanguard 3 Satellite, Meteoroid Concentration

Scientific paper

An interplanetary dust particle event, coincident with the Leonid meteor sshower and lasting approximately 70 hours, was recorded by a sensor on sthe Vanguard III satellite. During this interval the satellite's smicrophone system registered impacts of approximately 2800 dust sparticles with momenta exceeding 10-2 dyne-second. The impact srate varied by as much as two orders of magnitude within a few hours. sThe microphone system was almost omnidirectional, so the radiants of the sdust particles cannot be defined. Association of these dust particles swith the Leonid meteor stream is suggested by the coincidence in time sand by the location of the satellite. Vanguard III traversed five major smeteor streams, but the impact rates significantly exceeded the sbackground rate only during this one interval. This is the first case in swhich a significant increase in the directly measured impact rate of sdust particles possibly can be associated with a major meteor stream.

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