Computer Science
Scientific paper
Oct 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997jimo...25..210b&link_type=abstract
WGN, Journal of the International Meteor Organization, p. 210-214.
Computer Science
5
Scientific paper
The activity profile for the 1996 Leonids from 434 observations made by 109 observers and comprising 4449 shower meteors is presented. Two peaks in the ZHR profile are found, one very distinct at lambda=235.17+-0.07 (eq. 2000.0) and a less well-defined peak at lambda=235.4+-0.1. The former peak has a ZHR of 86+-22 and the latter a maximum of 45+-4. There is a statistically significant increase in the population index near the first peak, from a pre-outburst value near r=1.7 to r=1.9 at the early maximum and falling again to r=1.6 in the period lambda=235.30-235.40. The maximum flux at the early peak corresponds to 0.012+-0.004 meteoroids per square kilometer and per hour with absolute magnitudes greater than 6.5, and 0.003+-0.001 meteoroids per square kilometer and per hour for the later peak. We associate the early peak with material of very recent ejection from Comet 55P/Tempel-Tuttle and the broader, less visible maximum, with the more traditional peak comprising older material.
Arlt Rainer
Brown Patrick
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