Detection by HF radar of the Eta Aquarid meteor shower

Details Detection by HF radar of the Eta Aquarid meteor shower Detection by HF radar of the Eta Aquarid meteor shower

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989p%26ss...37..837t&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 37, July 1989, p. 837-846.

Computer Science

2

Antenna Arrays, Aquarid Meteoroids, High Frequencies, Meteoroid Showers, Radar Tracking, F Region, Gravitational Fields, Ionospheric Propagation

Scientific paper

The successful observation of the Eta Aquarid meteor shower is reported, demonstrating the value of HF skywave radars operating at frequencies below 15 MHz for meteor detection. The results are consistent with the shower radiant having a diameter of about 6 deg, centered on R.A. = 339 deg, declination = 0 deg. If the cumulative distribution of meteoroidal particles exceeding a lower threshold mass m is described by a power law of the form N(m) = about m exp c, where the exponent c is assumed to equal -1.0 for sporadic meteors, then, by comparison, the particles of the Eta Aquarid shower must belong to a flatter distribution, with c in the range from -1.0 to -0.6.

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