Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298

Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298

We present the results of the analysis of temporal power spectra of interplanetary scintillation for the strong radio source 3C 298 observed at 111 MHz with radio telescope BSA LPI in the period near the solar activity minimum. The velocity of the solar wind plasma irregularities and the power expon...

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Видавець:Головна астрономічна обсерваторія НАН України
Дата:2013
Автори: Glubokova, S.K., Chashei, I.V., Tyul'bashev, S.A., Shishov, V.I.
Формат: Стаття
Мова:English
Опубліковано: Головна астрономічна обсерваторія НАН України 2013
Назва видання:Advances in Astronomy and Space Physics
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/119619
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Цитувати:Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298 / S.K. Glubokova, I.V. Chashei, S.A. Tyul'bashev, V.I. Shishov // Advances in Astronomy and Space Physics. — 2013. — Т. 3., вип. 2. — С. 94-97. — Бібліогр.: 12 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id irk-123456789-119619
record_format dspace
spelling irk-123456789-1196192017-06-08T03:03:37Z Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298 Glubokova, S.K. Chashei, I.V. Tyul'bashev, S.A. Shishov, V.I. We present the results of the analysis of temporal power spectra of interplanetary scintillation for the strong radio source 3C 298 observed at 111 MHz with radio telescope BSA LPI in the period near the solar activity minimum. The velocity of the solar wind plasma irregularities and the power exponent of the turbulence spatial spectrum are estimated from the measured temporal scintillation spectra. It is shown that some high frequency ffattening of the temporal scintillation power spectra due to the noise influence can bias the estimates of the source angular size and the spectral index of plasma turbulence. The comparison between the turbulence parameters for the sources 3C 48 and 3C 298 have been carried out. The decrease in the turbulence spectral exponent by transit from the high latitude fast solar wind to the low latitude slow solar wind is found from the 3C 298 data that confirms similar dependence found recently for the 3C 48 data. 2013 Article Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298 / S.K. Glubokova, I.V. Chashei, S.A. Tyul'bashev, V.I. Shishov // Advances in Astronomy and Space Physics. — 2013. — Т. 3., вип. 2. — С. 94-97. — Бібліогр.: 12 назв. — англ. 2227-1481 http://dspace.nbuv.gov.ua/handle/123456789/119619 en Advances in Astronomy and Space Physics Головна астрономічна обсерваторія НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description We present the results of the analysis of temporal power spectra of interplanetary scintillation for the strong radio source 3C 298 observed at 111 MHz with radio telescope BSA LPI in the period near the solar activity minimum. The velocity of the solar wind plasma irregularities and the power exponent of the turbulence spatial spectrum are estimated from the measured temporal scintillation spectra. It is shown that some high frequency ffattening of the temporal scintillation power spectra due to the noise influence can bias the estimates of the source angular size and the spectral index of plasma turbulence. The comparison between the turbulence parameters for the sources 3C 48 and 3C 298 have been carried out. The decrease in the turbulence spectral exponent by transit from the high latitude fast solar wind to the low latitude slow solar wind is found from the 3C 298 data that confirms similar dependence found recently for the 3C 48 data.
format Article
author Glubokova, S.K.
Chashei, I.V.
Tyul'bashev, S.A.
Shishov, V.I.
spellingShingle Glubokova, S.K.
Chashei, I.V.
Tyul'bashev, S.A.
Shishov, V.I.
Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298
Advances in Astronomy and Space Physics
author_facet Glubokova, S.K.
Chashei, I.V.
Tyul'bashev, S.A.
Shishov, V.I.
author_sort Glubokova, S.K.
title Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298
title_short Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298
title_full Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298
title_fullStr Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298
title_full_unstemmed Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298
title_sort changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3c 298
publisher Головна астрономічна обсерваторія НАН України
publishDate 2013
url http://dspace.nbuv.gov.ua/handle/123456789/119619
citation_txt Changes in the spectral index of the interplanetary plasma turbulence in the period of low solar activity from observations of strongly scintillating source 3C 298 / S.K. Glubokova, I.V. Chashei, S.A. Tyul'bashev, V.I. Shishov // Advances in Astronomy and Space Physics. — 2013. — Т. 3., вип. 2. — С. 94-97. — Бібліогр.: 12 назв. — англ.
series Advances in Astronomy and Space Physics
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AT tyulbashevsa changesinthespectralindexoftheinterplanetaryplasmaturbulenceintheperiodoflowsolaractivityfromobservationsofstronglyscintillatingsource3c298
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first_indexed 2023-10-18T20:35:01Z
last_indexed 2023-10-18T20:35:01Z
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