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- Title
Direct measurements of auroral kilometric radiation in a limited source.
- Authors
Mogilevsky, M.; Moiseenko, I.; Romantsova, T.; Hanasz, J.; Burinskaya, T.; Chugunin, D.
- Abstract
The enhancement of auroral kilometric radiation near its lowest frequency has been detected in the polar edge of the auroral zone in the POLRAD experiment with the INTERBALL-2 satellite. The difference between the local electron cyclotron frequency and the lowest frequency of enhanced radiation is 8-20 kHz, indicating the closeness to the source of auroral kilometric radiation. According to the detailed analysis of low-frequency auroral kilometric radiation, its amplitude is larger than the 'background' values by a factor of 20-70 and has amplitude modulation with characteristic periods of 40-60 s. The increase in the intensity at low frequencies is attributed to the intersection of the source region by the satellite and the detection of waveguide modes in it.
- Subjects
POLAR regions; RADIO auroras; SOLAR radio emission; ELECTRON cyclotron resonance sources; AMPLITUDE modulation; MEASUREMENT; PLASMA waveguides; MAGNETIC fields
- Publication
JETP Letters, 2011, Vol 93, Issue 6, p326
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364011060087