Cross section on the Quadrantid meteor stream

Details Cross section on the Quadrantid meteor stream Cross section on the Quadrantid meteor stream

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991baicz..42..124s&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 42, no. 2, April 1991, p. 124-132.

Astronomy and Astrophysics

Astronomy

4

Meteoroid Showers, Quadrantid Meteoroids, Radar Astronomy, Astrometry, Cross Sections, Radio Meteors

Scientific paper

Radar meteor observations from Ondrejov, Czechoslovakia, and from Ottawa, Canada, have been used to determine the number density of meteoroids through the cross section of the Quadrantid meteor stream. The observations comprise 42 campaigns in the period 1958 to 1987 from two stations separated by 90 deg of longitude and total more than 95,000 radar echoes of shower meteors. On average, the shower activity peaks at solar longitude 282.6 deg (epoch 1950.0) relatively independent of the mass of the meteors because shifts due to mass sorting in individual years are smoothed out over long periods of time. Cross sectional profiles to a resolution of one hour of earth motion are calculated for classes of echo duration (particle size) spanning radio magnitudes approximately from + 6 to - 2.

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