Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...187..919h&link_type=abstract
Astronomy and Astrophysics, Vol.187, NO. 1+2/NOV, P. 919, 1987
Astronomy and Astrophysics
Astrophysics
3
Scientific paper
The main characteristics of the meteor streams associated with comet P/Halley, Orionids and Eta Aquarids, have been deduced from simultaneous radar observations at Ondrejov (Czechoslovakia) and Budrio (Italy), during the shower periods in 1985 and 1986. The flux of particles with masses m > 10-6 kg was found to be F = 1.5 × 10-12 m-2 s-1 for the central parts of the streams. This value is less than one third of the maximum values observed within the stream. The differential mass index, s = 1.85, derived for the last three returns of the showers, is compared with the results from 1980-1983, s = 2.2. The difference suggests the presence of two populations of particles in the stream.
Cevolani Giordano
Formiggini C.
Hajduk Agnieszka
Hajduková Mária
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