Abstract
Results of almost two years (January 1999–October 2000) of continuous observations of auroral kilometric radio emission with the instrument AKR-X onboard the high-apogee satellite of the Earth Interball-1 are presented. The observations were conducted at the growth stage (in 1999) and in the maximum (2000) of solar activity within the 100–1500 kHz frequency band. The results of AKR detection in the vicinity of the maximum of its spectrum at a frequency of 252 kHz are presented. Both similarity (for example, the character of global directivity) and important differences from the AKR emission observed during the solar activity minimum [5] are found. Together with very high sporadicity, strong seasonal changes in the intensity are typical for the emission. It is completely absent in the spring-summer period in the Northern Hemisphere and is strongly suppressed in this period in the Southern Hemisphere. Probable nature of these features of AKR is discussed.
Similar content being viewed by others
References
Benediktov, E.A., Getmantsev, G.G., Sazonov, Yu.A., and Tarasov, A.F., Preliminary Results of Measuring Intense Extragalactic Radio Emission at Frequencies 725 and 1525 kHz on Electron-2 Satellite, Kosm. Issled., 1965, vol. 3, p. 614. [Cosmic Research, p. 492].
Gurnett, D.A., The Earth as Radio Source: Terrestrial Kilometric Radiation, J. Geophys. Res., 1974, vol. 79, p. 4227.
Mustel’, E.R., Reality of Influence of Solar Corpuscular Fluxes on Lower Layers of the Earth’s Atmosphere, Nauchnye Informatsii, 1972, issue 24, pp. 5–55.
Wu, C.S. and Lee, L.C., A Theory of Terrestrial Kilometric Radiation, Astrophys. J., 1979, vol. 230, p. 621.
Kuril’chik, V.N., Kopaeva, I.F., and Mironov, S.V., Observations of the Auroral Kilometric Radiation onboard the Interball-1 Satellite in 1995–1997, Kosm. Issled., 2006, vol. 44, no. 2, pp. 101–111. [Cosmic Research, pp. 95–105].
Louarn, P., Roux, A., de Feraudy, H., et al., Trapped Electrons as a Free Energy Source for the Auroral Kilometric Radiation, J. Geophys. Res., 1990, vol. 95, p. 5983.
Ergun, R.E., Carlson, C.W., McFadden, J.P., et al., FAST Satellite Wave Observations in the AKR Source Region, Geophys. Res. Lett., 1998, vol. 25, p. 2061.
Delory, G.T., Ergun, R.E., Carlson, C.W., et al., FAST Observation of Electron Distributions within AKR Source Regions, Geophys. Res. Lett., 1998, vol. 25, p. 2069.
Pritchet, P.L., Strangeway, R., Carlson, C.W., et al., Free Energy Sources and Frequency Bandwidth for the Auroral Kilometric Radiation, J. Geophys. Res., 1999, vol. 104, p. 10317.
Hashimoto, K., Calvert, W., and Matsumoto, H., Kilometric Continuum Detected by Geotail, J. Geophys. Res., 1999, vol. 104, p. 28645.
Kuril’chik, V.N., Kopaeva, I.F., and Mironov, S.V., Interball-1 Observations of the Kilometric Continuum of the Earth’s Magnetosphere, Kosm. Issled., 2004, vol. 42, no. 1, pp. 3–10. [Cosmic Research, pp. 1–7].
Author information
Authors and Affiliations
Additional information
Original Russian Text © V.N. Kuril’chik, V.S. Prokudina, I.F. Kopaeva, 2012, published in Kosmicheskie Issledovaniya, 2012, Vol. 50, No. 3, pp. 211–218.
Rights and permissions
About this article
Cite this article
Kuril’chik, V.N., Prokudina, V.S. & Kopaeva, I.F. Observations of auroral kilometric radio emission on the Interball-1 satellite in the active Sun period 1999–2000. Cosmic Res 50, 203–210 (2012). https://doi.org/10.1134/S0010952512020049
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0010952512020049