Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.304..743v&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 304, Issue 4, pp. 743-750.
Astronomy and Astrophysics
Astronomy
43
Celestial Mechanics, Stellar Dynamics, Meteors, Meteoroids
Scientific paper
We introduce a new approach to meteoroid stream identification, based on a distance function involving four geocentric quantities that are directly linked to observations; the new distance function is thus defined in a space that has as many dimensions as the number of independently measured physical quantities, at variance from the conventional orbital similarity criterion of Southworth & Hawkins. Two of the new variables turn out to be near-invariant with respect to the principal secular perturbation affecting meteoroid orbits, the one associated with the cycle of omicron.
Froeschle Cl.
Jopek Tadeusz Jan
Valsecchi Giovanni B.
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