Computer Science
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jimo...33..118b&link_type=abstract
WGN, Journal of the International Meteor Organization, vol. 33, no. 5, p. 118-124
Computer Science
2
Scientific paper
A procedure to obtain the persistent train population index, tau, is proposed. This is based on the assumption that train duration can be described by a population index, like meteor brightness. With this method we obtain tau for the fireballs from Perseids (tau =0.919+-0.400 in the interval [1 s, 45 s]), Leonids (tau = 0.807+-0.273 in the interval [1 s, 10 s] and tau = 0.993+-0.135 in the interval [13 s, 600 s]), Geminids (tau = 0.820+-0.670) and the sporadic background (tau = 0.600+-0.180) from the SOMYCE database. These values are compared with those obtained for faint meteors to +6 magnitude. A global fit with the FIDAC Database gives tau = 0.899+-0.157 in the interval [1 s, 20 s] and tau = 0.997+-0.230 in the interval [21 s, 900 s]. Finally, a relationship between the visual magnitude and tau is sought in the interval [-3 magnitude, -8 magnitude] with a fit tau= cm_{ v}+ m_{v0}=-0.018 m_{v} + 0.808. Variations of tau are discussed.
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