A statistical study of solar Type-3 bursts and auroral kilometric radiation onsets

Details A statistical study of solar Type-3 bursts and auroral kilometric radiation onsets A statistical study of solar Type-3 bursts and auroral kilometric radiation onsets

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985iowa.reptq....f&link_type=abstract

Progress Report Iowa Univ., Iowa City. Dept. of Physics and Astronomy.

Astronomy and Astrophysics

Astronomy

Auroral Irradiation, Extraterrestrial Radio Waves, Radio Bursts, Solar Radiation, Terrestrial Radiation, Auroras, Data Transmission, Electromagnetic Radiation, Low Frequencies, Sun

Scientific paper

Simultaneous occurrences of Type-3 solar radio bursts and auroral kilometric radiation were observed by Calvert using ISEE-1 spectrograms. He presented evidence suggesting that the incoming Type-3 burst stimulates the onset of auroral kilometric radiation. This paper presents a statistical study of the correlation between Type-3 bursts and auroral kilometric radiation. A superposed epoch analysis was performed on as many as 186 Type-3 events. The Type-3 bursts were detected by the ISEE-3 spacecraft on the sunward side of the Earth. At the same time the IMP-8 spacecraft was used to detect onsets of kilometric radiation on the nightside of the Earth. For each event, the intensities measured by ISEE-3 (Type-3 intensities) were subtracted from the intensities measured by IMP-8 (Type 3 and possible AKR intensities). The resulting intensities for each event were then added to determine if kilometric radiation was preferentially observed following a Type-3 burst. This analysis was performed at frequencies of 100 kHz, 178 kHz and 500 kHz. The results of this study show that a statistically significant correlation exists between incoming Type-3 bursts from the Sun and kilometric radiation from the Earth.

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