Affiliation:
1. Higher School of Economics
2. Space Research Institute RAS
3. Space Research Institute of RAS
Abstract
In this work, we have studied the recently discovered hectometric continuum radiation in near-Earth plasma. We have carried out a detailed statistical analysis of the occurrence of a hectometric continuum near Earth at distances 1.1–2 Re, where Re is the Earth radius, for a two-year period, using data from the ERG (Arase) satellite. We have established that the generation of the hectometric radiation depends on the local magnetic time. The continuum radiation of this type is shown to occur mainly at night and in the morning. We have also studied the dependence of the occurrence of hectometric radiation on geomagnetic activity and have demonstrated that there is no direct dependence of the occurrence of hectometric radiation on geomagnetic disturbances. Moreover, the statistical analysis made it possible to localize sources of radio emission of this type in near-Earth space and to show that the source(s) of generation of the hectometric continuum radiation is located at low latitudes.
Publisher
Infra-M Academic Publishing House
Reference47 articles.
1. Бенедиктов Е.А., Гетманцев Г.Г., Митяков Н.А. и др. Результаты измерений интенсивности радиоизлучения на частотах 725 и 1525 кГц при помощи аппаратуры, установленной на спутнике «ЭЛЕКТРОН-2». Иссл. космического пространства / под ред. Скудрина Г.А. М.: Наука, 1965. 581 с., Benediktov E.A., Getmancev G.G., Mitjakov N.A., Rapoport V.A., Sazonov Ju.A., Tarasov A.F. Results of measuring the intensity of radio emissions at 725 and 1525 kHz frequencies using the equipment installed on “ELECTRON-2” satellite. Issledovanija kosmicheskogo prostranstva [Space exploration]. Moscow, Nauka Publ., 1965, 581 p. (In Russian).
2. Железняков В.В., Злотник Е.Я., Зайцев В.В. и др. Эффект двойного плазменного резонанса и его роль в радиоастрономии. Успехи физ. наук. 2016. Т. 186, № 10. С. 1090–1116. DOI: 10.3367/UFNr.2016.05.037813., Benson R.F., Calvert W. ISIS-1 observations of the source of AKR. Geophys. Res. Lett. 1979, vol. 6, p. 479.
3. Колпак В.И., Могилевский М.М., Чугунин Д.В. и др. Статистические свойства аврорального километрового радиоизлучения по наблюдениям на спутнике ERG (Arase). Солнечно-земная физика. 2021. Т. 7, № 1. С. 13–20. DOI: 10.12737/szf-71202102., Brown L.W. The galactic radio spectrum between 130 kHz and 2600 kHz. Astrophys. J. 1973, vol. 180, pp. 359–370.
4. Курильчик В.Н. Наблюдение аврорального гектометрового радиоизлучения со спутника «Интербол-1». Космические исследования. 2007. Т. 45, № 3. С. 264–269., Carpenter D.L., Anderson R.R., Calvert W., Moldwin M.B. CRRES Observations of Density Cavities Inside the Plasmasphere. J. Geophys. Res. 2000, vol. 105, pp. 23323–23338. DOI: 10.1029/2000JA000013.
5. Курильчик В.Н., Григорьева В.П., Тирпак А. и др. Наблюдения нетеплового континуума в южной субполярной области земной магнитосферы со спутника «Прогноз-10-Интеркосмос». Космические исследования. 1992. Т. 30, № 2. С. 231–242., Chernyshov A.A., Chugunin D.V., Mogilevsky M.M. Auroral kilometric radiation as a diagnostic tool for the properties of the magnetosphere. JETP Lett. 2022, vol. 115, iss. 1, pp. 23–28. DOI: 10.1134/S0021364022010076.