Quasi-tomographic method and radar investigations of meteor complex near the Earth orbit

V. V. Sidorov   ; S. A. Kalabanov   ; T. K. Filimonova   ; I. V. Filin   ; T. N. Khairov   ; A. A. Netkach   ; R. A. Ishmuratov

Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Kazanskii Gosudarstvennyi Universitet. Uchenye Zapiski. Seriya Fiziko-Matematichaskie Nauki, Tome 147 (2005) no. 2, pp. 14-29

Résumé

Long-term observations of meteoric substance inflow, executed on a meteoric radar of the Kazan university, are processed with use quasitomographic computer technology which have been developed in Kazan State University. Object of research were microshowers, i.e., small showers with number of 5 and more meteors in days from discreet area of the sky 2$^\circ*2^\circ$ The maps of microstreams radiants distribution on northern celestial sphere from 4 year data with the resolution 2$^\circ*2^\circ$ are constructed. Parameters of their orbits are received. Opportunities of technology are illustrated on an example of research of orbital structure Day time Arietids. It is shown, that Arietids represent not one stream, and regular association of streams with the inclinations varying from $15^\circ$ up to $40^\circ$. The range of change of perihelion coordinates is close to a range of the perihelion coordinates of Marsden family comets.

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