Astronomy and Astrophysics – Astronomy
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005mnras.359.1131j&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 359, Issue 3, pp. 1131-1136.
Astronomy and Astrophysics
Astronomy
4
Meteors, Meteoroids
Scientific paper
The height distributions, velocity distributions and flux measurements of underdense echoes determined from meteor radar observations are significantly affected by the attenuation associated with the initial radius of meteor trains. Dual-frequency radar observations of a very large set of sporadic radar meteors at 29 and 38 MHz yield estimates of the initial train radius and its dependence on height and meteoroid speed as determined by the time-delay method. We provide empirical formulae that can be used to correct meteoroid fluxes for the effect of initial train radius at other radio frequencies.
Campbell-Brown Margaret
Jones Jason J.
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