Meteoroid Stream Searching: The Use of the Vectorial Elements |
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Authors: | Tadeusz J Jopek Regina Rudawska Przemys?aw Bartczak |
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Institution: | (1) Obserwatorium Astronomiczne UAM, Sloneczna 36, 60-286 Poznan, Poland |
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Abstract: | In this initial study, we propose a new distance function D
V
involving heliocentric vectorial orbital elements. The function measures differences between: the orbital energies, the angular
momentums vectors and the Laplace vectors. In comparison with the widely used D
SH
criterion of Southworth and Hawkins, D
D
criterion of Drummond and their hybrid D
H
by Jopek, the new function contains one invariant with respect to the principal secular perturbation: the orbital energy.
The new function proved to be useful in the classification amongst the IAU2003 meteoroids which we searched for streams by
D
V
function and also using D
SH
and D
N
-function given by Valsecchi et al. For major streams, the results agree very well. For minor, and near-ecliptical streams
the results sometimes differ markedly. |
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Keywords: | Meteoroids Meteoroid streams Methods: data analysis |
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