Radar Observations of Leonid Meteor Shower 2003 |
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| Authors: | Devulapalli Venkata Phani Kumar Kammadhanam Chenna Reddy Ganji Yellaiah |
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| Institution: | (1) Department of Astronomy, Osmania University, Hyderabad, Andhra Pradesh, 500 007, India;(2) Present address: Department of Space, National Atmospheric Research Laboratory, Government of India, P.B.No 123, Gadanki, Tirupati, 517502, India |
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| Abstract: | Observations carried out during Leonid meteor shower 2003, by using Indian MST radar (13.46^N, 79.18^E; dip 12.5^N) are used
to determine the number density of meteoroids through the cross section of the meteor streams. Cross sections are calculated
for a number of classes of echo duration (particle size). They are also used to determine the relative flux of the shower
in particle size ranges producing radar meteor echoes having durations <0.4 s, 0.4–1 s and >1 s. Mean activity profiles along
the Earth's passage through the stream show a systematic change of the peak activity and the width of the stream depending
on the distribution of echo durations across the stream. The patterns of mass distribution index s are presented and discussed. |
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| Keywords: | Leonids Activity Massindex Radar |
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