Computer Science – Numerical Analysis
Scientific paper
Jul 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993avest..27..102g&link_type=abstract
Astronomicheskii Vestnik (ISSN 0320-930X), vol. 27, no. 4, p. 102-108
Computer Science
Numerical Analysis
Asteroids, Evolution (Development), Meteoroid Showers, Numerical Analysis, Orbital Elements, Aphelions, Distribution (Property), Orbit Calculation, Perihelions, Toroids
Scientific paper
The structure of a meteor swarm at any moment of time depends on the orbital elements of a parental body (PB), on the PB position in the orbit, on the velocity and direction of meteor particles (MP) ejection. After choosing certain orbital elements and PB position in the orbit, as well as some average velocities of MP isotropic ejection, we calculate probable distributions of MP orbital elements depending upon the swarm age. It is shown that a compact and more stable meteor swarm corresponds to the PB orbit at aphelion. The swarm being ejected at the velocity of the order of 1-1.5 km/s at perihelion during 20-30 thousand years will take the form of a void toroid, the volume of which increases with time. The concentration of particles in the swarm gradually decreases, causing a reduction of the probability of the Earth's collision with an abundant meteor flux.
Gorbanev Yu. M.
Kramer E. N.
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