Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009coska..39....5z&link_type=abstract
Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 39, no. 1, p. 5-17.
Astronomy and Astrophysics
Astronomy
1
Meteor Showers, Radio Observations
Scientific paper
The activity and mass distribution of the Geminid meteor shower of 1996 - 2007 based on radio observations by a forward-scatter system operating along the Bologna - Modra baseline are analysed and presented. Activity curves corrected for an observability function derived for the system indicate a multiple-peak structure of the shower.The global activity curve for overdense echoes of durations ≥1s and ≥8s depicts two peaks at solar longitude 261.7°, 262.3° and 261.9°, 262.3°, respectively. Larger particles are concentrated more to the centre of the shower and slightly shifted towards the descending branch of the shower activity. The mean mass exponent of the Geminids is 1.73.
Cevolani Giordano
Porubčan Vladimir
Pupillo Giuseppe
Zigo Pavol
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