Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990an....311...55c&link_type=abstract
Astronomische Nachrichten (ISSN 0004-6337), vol. 311, no. 1, 1990, p. 55-62.
Astronomy and Astrophysics
Astronomy
7
Particle Emission, Relativistic Particles, Solar Flares, Solar Limb, Solar Radio Emission, Ionospheric Disturbances, Magnetic Storms, Plasma Diagnostics, Plasma Radiation
Scientific paper
This paper presents radio emission measurements, taken from different European stations, of the February 16th, 1984 solar behind-limb burst, which started in the active region AR 4408 at a longitude of about 130 deg W. The event was related to a very strong relativistic particle emission, the presence of cm-wave radiation from altitudes above 200,000 km above the photosphere, and an unusual U-shaped type II burst pattern consisting of four simultaneous emission bands. The spectrum in the cm-dm range exhibited different stages of evolution related to the burst onset, the burst maximum, and the postburst increase. It appears possible that, at dm-waves during the burst maximum, a partial overlapping of plasma radiation with gyrosynchroton radiation governing the cm-wave range took place.
Chertok I. M.
Fomichev V. V.
Gorgutsa R. V.
Markeev A. K.
Podstrigach T. S.
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