Magnetic Reconnection as a Driver for a Sub-ion-scale Cascade in Plasma Turbulence
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00484359" target="_blank" >RIV/67985815:_____/17:00484359 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.3847/2041-8213/aa93fb" target="_blank" >http://dx.doi.org/10.3847/2041-8213/aa93fb</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/2041-8213/aa93fb" target="_blank" >10.3847/2041-8213/aa93fb</a>
Alternative languages
Result language
angličtina
Original language name
Magnetic Reconnection as a Driver for a Sub-ion-scale Cascade in Plasma Turbulence
Original language description
A new path for the generation of a sub-ion-scale cascade in collisionless space and astrophysical plasma turbulence, triggered by magnetic reconnection, is uncovered by means of high-resolution two-dimensional hybridkinetic simulations employing two complementary approaches, Lagrangian and Eulerian, and different driving mechanisms. The simulation results provide clear numerical evidence that the development of power-law energy spectra below the so-called ion break occurs as soon as the first magnetic reconnection events take place, regardless of the actual state of the turbulent cascade at MHD scales. In both simulations, the reconnection-mediated small-scale energy spectrum of parallel magnetic fluctuations exhibits a very stable spectral slope of similar to-2.8, whether or not a large-scale turbulent cascade has already fully developed. Once a quasi-stationary turbulent state is achieved, the spectrum of the total magnetic fluctuations settles toward a spectral index of -5/3 in the MHD range and of similar to-3 at sub-ion scales.
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/GA15-10057S" target="_blank" >GA15-10057S: Solar wind ions: correlations, constraints, and causality</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal Letters
ISSN
2041-8205
e-ISSN
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Volume of the periodical
850
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
"L16/1"-"L16/6"
UT code for WoS article
000415860700002
EID of the result in the Scopus database
2-s2.0-85035363904