Open AccessMeteoroid stream identification: a new approach ‐‐ I. Theory
Author(s) -
Valsecchi G. B.,
Jopek T. J.,
Froeschlé Cl.
Publication year - 1999
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1999.02264.x
Subject(s) - meteoroid , physics , geocentric model , perturbation (astronomy) , celestial mechanics , function (biology) , perturbation theory (quantum mechanics) , orbital elements , classical mechanics , astronomy , quantum mechanics , biology , evolutionary biology
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 ο.