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Statements

Subject Item
n2:RIV%2F67985815%3A_____%2F14%3A00429504%21RIV15-GA0-67985815
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Power spectra of the frequency variations of zebras are computed to estimate the spectra of the plasma density variations in radio zebra sources. Methods: Frequency variations of zebra lines and the high-frequency boundary of the whole radio burst were determined with and without the frequency fitting. The computed time dependencies of these variations were analyzed with the Fourier method. First, we computed the variation spectrum of the high-frequency boundary of the whole radio burst, which is composed of several zebra patterns. This power spectrum has a power-law form with a power-law index -1.65. Then, we selected three well-defined zebra-lines in three different zebra patterns and computed the spectra of their frequency variations. The power-law indices in these cases are found to be in the interval between -1.61 and -1.75. Finally, assuming that the zebra-line frequency is generated on the upper-hybrid frequency and that the plasma frequency omegape is much higher than the electron-cyclotron frequency omegace, the Fourier power spectra are interpreted to be those of the electron plasma density in zebra radio sources. Power spectra of the frequency variations of zebras are computed to estimate the spectra of the plasma density variations in radio zebra sources. Methods: Frequency variations of zebra lines and the high-frequency boundary of the whole radio burst were determined with and without the frequency fitting. The computed time dependencies of these variations were analyzed with the Fourier method. First, we computed the variation spectrum of the high-frequency boundary of the whole radio burst, which is composed of several zebra patterns. This power spectrum has a power-law form with a power-law index -1.65. Then, we selected three well-defined zebra-lines in three different zebra patterns and computed the spectra of their frequency variations. The power-law indices in these cases are found to be in the interval between -1.61 and -1.75. Finally, assuming that the zebra-line frequency is generated on the upper-hybrid frequency and that the plasma frequency omegape is much higher than the electron-cyclotron frequency omegace, the Fourier power spectra are interpreted to be those of the electron plasma density in zebra radio sources.
dcterms:title
Frequency variations of solar radio zebras and their power-law spectra Frequency variations of solar radio zebras and their power-law spectra
skos:prefLabel
Frequency variations of solar radio zebras and their power-law spectra Frequency variations of solar radio zebras and their power-law spectra
skos:notation
RIV/67985815:_____/14:00429504!RIV15-GA0-67985815
n3:aktivita
n5:P n5:I
n3:aktivity
I, P(GAP209/12/0103)
n3:cisloPeriodika
January
n3:dodaniDat
n10:2015
n3:domaciTvurceVysledku
n12:9659455
n3:druhVysledku
n18:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
17514
n3:idVysledku
RIV/67985815:_____/14:00429504
n3:jazykVysledku
n17:eng
n3:klicovaSlova
Sun; radio radiation; plasmas
n3:klicoveSlovo
n7:Sun n7:radio%20radiation n7:plasmas
n3:kodStatuVydavatele
FR - Francouzská republika
n3:kontrolniKodProRIV
[E36210936CE8]
n3:nazevZdroje
Astronomy & Astrophysics
n3:obor
n15:BN
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n9:GAP209%2F12%2F0103
n3:rokUplatneniVysledku
n10:2014
n3:svazekPeriodika
561
n3:tvurceVysledku
Karlický, Marian
n3:wos
000330584000034
s:issn
0004-6361
s:numberOfPages
4
n14:doi
10.1051/0004-6361/201322547