Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pasj...54l..23w&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.54, No.2, pp.L23-L26
Astronomy and Astrophysics
Astronomy
12
Comets: Individual (Comet 55P/Tempel-Tuttle), Interplanetary Medium, Meteors, Solar System
Scientific paper
We carried out a wide-field TV observation of the strong activity of the Leonid meteor shower from 17h17m UT through 20h20m UT on 2001 November18. We detected 869 Leonid meteors, along with 32 non-Leonids. A broad peak of the activity was recognized at around 18h25mUT, when the peak influx rate of meteoroids was 1.4 × 10-5 km-2s-1 (mag <= +3). The activity of this main peak was comparable to that of a storm observed in 1999 over Europe. The activity of this peak was rich in bright meteors, including fireball class. The magnitude distribution index was 1.5 +/- 0.3 (-3 <= mag <= +1). The relationship between the observed peak and several theoretical predictions is discussed. We also discuss an ``outburst'', which consisted of at least 15 faint meteors which appeared within four seconds at 17h56m22s.
Abe Shinsuke
Naito Seiichiro
Sekiguchi Tomohiko
Shikura Masato
Watanabe Jun'ichi
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