Turbulence in Sources of Decimetric Flare Continua
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00574428" target="_blank" >RIV/67985815:_____/23:00574428 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0345188" target="_blank" >https://hdl.handle.net/11104/0345188</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11207-023-02188-5" target="_blank" >10.1007/s11207-023-02188-5</a>
Alternative languages
Result language
angličtina
Original language name
Turbulence in Sources of Decimetric Flare Continua
Original language description
Decimetric continua are commonly observed during long-lasting solar flares. Their frequency boundaries vary with time. We studied frequency boundary variations using the power spectrum analysis. Analyzing five decimetric continua, we found that their power spectra have a power-law form with the power-law index close to the Kolmogorov turbulence index5/3. The same power index was also found in the power spectra of radio flux variations at frequencies in the range of the frequency boundary variations. Moreover, these frequency boundary variations were highly correlated with the radio flux ones. We interpret these results to be due to turbulent density variations in the reconnection plasma outflow to the termination shock formed above flare loops. In three cases of decimetric continua, we estimated the level of the plasma density turbulence to be 7.6 11.2% of the mean plasma density. We think that the analysis of variations of decimetric continua can be used in studies of the plasma turbulence in solar flares.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GA22-34841S" target="_blank" >GA22-34841S: Science with Solar Orbiter: Focusing on eruptive processes</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Solar Physics
ISSN
0038-0938
e-ISSN
1573-093X
Volume of the periodical
298
Issue of the periodical within the volume
8
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
95
UT code for WoS article
001040205700001
EID of the result in the Scopus database
2-s2.0-85167409906