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An Estimation of Meteoroid Flux at Outer Martian Space for Steady Meteor Streams

Published online by Cambridge University Press:  12 April 2016

Ko Nagasawa
Ko Nagasawa*
Affiliation:
Earthquake Research Institute, The University of Tokyo, No. 1-1, Yayoi 1-chome, Bunkyo-ku, Tokyo, Japan

Abstract

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This work was done to estimate meteoroid fluxes of steady meteor streams at places far away from the sun, for example, beyond Martian orbit. For the estimation, a Normal Distribution Model is introduced. This model assumes that the flow of meteoroids is steady and the meteoroids are distributed in the form of a normal distribution around the orbit of their parent comet. Keplerian motion of each meteoroid is also assumed. Some parameters, necessary for determining a practical model, can be obtained through observations. The model will give the overall structure of meteor streams and their fluxes can be calculated for any points on the orbits of their parent comets. Calculations show that fluxes of streams sharply decrease as the solar distance increases and that meteoroids scatter chiefly along the orbital planes of the parent comets. The model seems to be useful to deduce rough structure of meteor streams.

Type
Meteoroids and Meteor Streams
Information
International Astronomical Union Colloquium , Volume 126: Origin and Evolution of Interplanetary Dust , 1991 , pp. 307 - 310
Copyright
Copyright © Kluwer 1991

References

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