Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..765s&link_type=abstract
In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J
Astronomy and Astrophysics
Astronomy
Meteor Showers
Scientific paper
A development of a new quasy-tomography technology of processing of the goniometric data from a meteor radar allowed considerably to increase the angular resolution of radar measuring and its application to the data received at continuous observation within six same months 1993 and 1998 on meteor radar at KSU has allowed to find out new astronomical objects - sporadic microshowers and to measure parameters of their orbits. We have named microshowers as sets of the registered meteors having close velocities and their coordinates of radiants acting during one or more days but not repeated in identical hours and dates in two different years. Possible sources of occurrence of such formations are discussed: a) Dust traces of small comets and the asteroids which have not been found out yet by optical astronomical tools. b) Dust traces of large meteoroids fallen to the Earth as bolides or flown by in immediate vicinity to the Earth at the moment of time close to the moments of display of microshowers c) The groups of the meteor particles which have been pulled out from bodies of meteor streams by consecutive gravitational perturbation of planets with their preserved collective properties during evolution.
Ishmuratov Rashid A.
Kalabanov Sergei A.
Sidorov Vladimir V.
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