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Meteor Streams: the Relation to Hazardous Celestial Bodies

Авторы: E. N. Tikhomirova

Журнал: Protecting the Earth against Collisions with Asteroids and Comet Nuclei In: A. M. Finkelstein, W. F. Huebner, V. A. Shor (Eds) Proceedings of the International Conference “Asteroid-Comet Hazard-2009”, StP: Nauka, 168–173

Год: 2010

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Ключевые слова: Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), meteor streams, HSB celestial bodies, evolution of meteor particles' orbits, elliptic orbits, gravitational field of the Sun, Poynting ' Robertson effect, corpuscular analogue of Poynting-Robertson effect, initial and final elliptic orbits, semi major axis of meteor particles, aeccentricity, perihelion distance, aphelion distance, method of estimating the meteor stream's life time, the perturbed two-body problem, meteor particles parent bodies, meteor streams, parent comets, meteor stream Cancrids, meteor stream Cygnids, meteor stream Cygnids, the parent comet 3/Biela, the parent comet 73/Schwassmann-Wachmann, the parent comet 177 /Barnard

Analytically tractable, the evolution of meteor particles' elliptic orbits in a gravitational field of the Sun is considered in view of light pressure, the PoyntingRobertson effect, and the corpuscular analogue of PoyntingRobertson effect. The compact formula connecting parameters of initial and final elliptic orbits (semi major axis and eccentricity; perihelion and aphelion distances) of meteor particles are deduced. In the context of the model for the evolution of meteor particles' orbits, the method of estimating the meteor stream's life time is derived