The eta-Aquarid Meteor Shower in 1997

Details The eta-Aquarid Meteor Shower in 1997 The eta-Aquarid Meteor Shower in 1997

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997jimo...25..153r&link_type=abstract

WGN, Journal of the International Meteor Organization, p. 153-156.

Computer Science

3

Scientific paper

From data of the 1997 return of the eta-Aquarids, profiles of the population index r and the ZHR have been calculated. The ZHR maximum is located at lambda=44.5+-0.2 (May 4, 1997, 22h UT). This is by 1 degree earlier than the average derived for the period 1988 to 1995. The minimum value of the population index of r=1.95+-0.4 occurs about 1 degree after the maximum. Also this value is considerably lower than the standard figure of r=2.7. This difference is also the reason for the lower maximum ZHR of 54+-3 as compared to the average of 69+-4. Analyses of the number densities for different particle populations indicate a mass segregation in the meteoroids stream, with the larger particles appearing later than the smaller meteoroids.

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