Flattening of the Density Spectrum in Compressible Hall-MHD Simulations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00548646" target="_blank" >RIV/67985815:_____/21:00548646 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/21:10439878
Result on the web
<a href="http://hdl.handle.net/11104/0324688" target="_blank" >http://hdl.handle.net/11104/0324688</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/atmos12091162" target="_blank" >10.3390/atmos12091162</a>
Alternative languages
Result language
angličtina
Original language name
Flattening of the Density Spectrum in Compressible Hall-MHD Simulations
Original language description
Observations of proton density fluctuations of the solar wind at 1 au have shown the presence of a decade-long transition region of the density spectrum above sub-ion scales, characterized by a flattening of the spectral slope. We use the proton density fluctuations data collected by the BMSW instrument on-board the Spektr-R satellite in order to delimit the plasma parameters under which the transition region can be observed. Under similar plasma conditions to those in observations, we carry out 3D compressible magnetohydrodynamics (MHD) and Hall-MHD numerical simulations and find that Hall physics is necessary to generate the transition region. The analysis of the k omega power spectrum in the Hall-MHD simulation indicates that the flattening of the density spectrum is associated with fluctuations having frequencies smaller than the ion cyclotron frequency.
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/GA19-18993S" target="_blank" >GA19-18993S: Transport of energy of solar wind variations from larger to smaller scales</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
Atmosphere
ISSN
2073-4433
e-ISSN
2073-4433
Volume of the periodical
12
Issue of the periodical within the volume
9
Country of publishing house
CH - SWITZERLAND
Number of pages
16
Pages from-to
1162
UT code for WoS article
000699323800001
EID of the result in the Scopus database
2-s2.0-85114735692