Spectrum of kinetic plasma turbulence at 0.3-0.9 astronomical units from the Sun
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00547579" target="_blank" >RIV/67985815:_____/21:00547579 - isvavai.cz</a>
Alternative codes found
RIV/68378289:_____/21:00543392
Result on the web
<a href="https://doi.org/10.1103/PhysRevE.103.063202" target="_blank" >https://doi.org/10.1103/PhysRevE.103.063202</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevE.103.063202" target="_blank" >10.1103/PhysRevE.103.063202</a>
Alternative languages
Result language
angličtina
Original language name
Spectrum of kinetic plasma turbulence at 0.3-0.9 astronomical units from the Sun
Original language description
We investigate spectral properties of turbulence in the solar wind that is a weakly collisional astrophysical plasma, accessible to in situ observations. Using the Helios search coil magnetometer measurements in the fast solar wind, in the inner heliosphere, we focus on properties of the turbulent magnetic fluctuations at scales smaller than the ion characteristic scales, the so-called kinetic plasma turbulence. At such small scales, we show that magnetic power spectra between 0.3 and 0.9 AU from the Sun have a generic shape similar to f(-8/3) exp (-f/f(d)), where the dissipation frequency f(d) is correlated with the Doppler shifted frequency f(rho e) of the electron Larmor radius. This behavior is statistically significant: all the observed kinetic spectra are well described by this model, with f(d) = f(rho e)/1.8. Our results indicate that the electron gyroradius plays the role of the dissipation scale and marks the end of the electromagnetic cascade in the solar wind.
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/GA18-08861S" target="_blank" >GA18-08861S: Plasma turbulence at ion scales in the solar wind</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review E
ISSN
2470-0045
e-ISSN
2470-0053
Volume of the periodical
103
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
063202
UT code for WoS article
000657177000007
EID of the result in the Scopus database
2-s2.0-85108077108