On the activity and structure of the Quadrantid meteor stream

Details On the activity and structure of the Quadrantid meteor stream On the activity and structure of the Quadrantid meteor stream

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ncimc..13..653p&link_type=abstract

Nuovo Cimento C, Serie 1 (ISSN 0390-5551), vol. 13 C, May-June 1990, p. 653-662.

Computer Science

1

Quadrantid Meteoroids, Solar Activity Effects, Interplanetary Medium, Orbital Elements

Scientific paper

The activity of the Quadrantid meteor stream is analyzed on the basis of radar observations at Budrio (44.5 deg N, 11.6 deg E), Italy, in 1983, 1984, and 1987. The Quadrantids have appeared as a prominent meteor stream, and the compound activity curve is symmetrical with the maximum at solar longitude 282.69 + or - 0.06 deg (equinox 1950.0). The maxima in individual years vary and are consistent with visual observations in corresponding years. Mean orbit of the stream as well as the radiant area were derived from 54 photographic Quadrantid orbits compiled from Meteor Data Centre and Nippon Meteor Society. The mean radiant was found at alpha = 230.8 deg, delta = 49.5 deg, and the radiant area is elongated covering an area of 8 x 4 deg. The photographic orbital elements obtained over a period of almost 40 years follow the trend of orbital evaluation of the stream proposed by Hughes et al. (1979).

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