ON A FINE STRUCTURE OF THE PERSEID METEOROID STREAM. METHOD OF INDICES

摘要

A fine structure of the Perseids is studied using a method of indices. The procedure, based only on mathematical statistics, is now used to study of a fine structure of the Perseid stream and its filaments which cannot be separated reliably by iteration methods. Besides the five orbital elements incorporated in the Southworth-Hawkins D-criterion, we have also included in the procedure the coordinates of the radiant which are one of the most accurately known parameters and the geocentric velocity as a significant parameter characteristic for physically related orbits. 351 (approx. 67%) of 522 Perseids taken into account were assigned to one of 11 chosen filaments of orbits.