Meteoroid Dispersion In The Gravitation Field Of The Earth
- Paper number
IAC-07-A6.I.06
- Author
Dr. Sergey Meshcheryakov, Central Research Institute of Machine Building (TSNIIMASH), Russia
- Year
2007
- Abstract
The Dirac delta function has found applications in the orbital debris statistical problems. The averaging on an orbital period helps to resolve many questions with particle streams and to get some statistical evaluations. But in the unrestricted problem there is no a scale such as a period, and some modifications in the averaging technique are needed. Like statistical problems of restricted orbital motion the meteoroid flows is convenient to study in the polar geocentric coordinate frame. There is used the common conception of averaging over sufficiently great time range. There are investigated characteristics of dispersion of a uniform meteoroid flow that depends on a speed of meteoroids entering into the Earth’s gravitational field. The density of the space distribution is a handy notion because of independence of a coordinate frame, but in applications there are usually used the values of particle fluxes. The density of a meteoroid flux distribution is given in a fixed geocentric coordinate system and the distribution reduced to dimensionless coordinates. The singularity in the vicinity of the flow axis behind the planet is studied. The density distribution in the perpendicular plane gives an evident picture of average meteoroid focusing by the Earth’s gravitational field. There are given several examples of meteoroid streamlines
- Abstract document
- Manuscript document
IAC-07-A6.I.06.pdf (🔒 authorized access only).
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