Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003pasj...55..567s&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.55, No.3, pp. 567-571
Astronomy and Astrophysics
Astronomy
4
Comets: Individual (55P/Tempel-Tuttle), Interplanetary Medium, Leonids, Meteors, Meteoroids
Scientific paper
We show a detailed analysis of a wide-field video observation of the Leonid Meteor Storm from 14h41m through 20h03m (UT) on 2001 November 18. We detected 1573 meteors of Leonids and 64 meteors of others. The peak of the storm appeared at 18h20m and its duration was 1.9hr (FWHM). Bright (m ≤ 2.5) and faint (m ≥ 2.5) meteors showed significantly different behavior in their activity. Especially, after 19h15m, bright objects dominated the meteor events. We found many local peaks in the count record, and most of local peaks consisted of faint meteors. The autocorrelation function and the interval distribution between the meteor arrivals suggest that the distribution of dust in the cometary trails has no significant spatial structures that give rise to a temporally coherent behavior with a time-scale of seconds to minutes.
Fujiwara Hideaki
Kitazume Jun
Miyamoto Daisuke
Shiki Shigetomo
Takeuchi Tsutomu T.
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