Formation of an Extended Equatorial Shadow Zone for Low-Frequency Saturn Kilometric Radiation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F24%3A00588562" target="_blank" >RIV/68378289:_____/24:00588562 - isvavai.cz</a>
Result on the web
<a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL106652" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL106652</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2023GL106652" target="_blank" >10.1029/2023GL106652</a>
Alternative languages
Result language
angličtina
Original language name
Formation of an Extended Equatorial Shadow Zone for Low-Frequency Saturn Kilometric Radiation
Original language description
Saturn Kilometric Radiation (SKR), being the dominant radio emission at Saturn, has been extensively investigated. The low-frequency extension of SKR is of particular interest due to its strong association with Saturn's magnetospheric dynamics. However, the highly anisotropic beaming of SKR poses challenges for observations. In most cases, the propagation of SKR is assumed to follow straight-line paths. We explore the propagation characteristics of SKR across different frequencies in this study. An extended equatorial shadow region for low-frequency SKR is identified, resulting from the merging of the Enceladus plasma torus and the previously known equatorial shadow zone. Ray-tracing simulations reveal that low-frequency (100 kHz) SKR is unable to enter the shadow region and is instead reflected toward high latitudes. In contrast, high-frequency SKR (100 kHz) generally propagates without hindrance. Observations suggest that some low-frequency SKR can enter the shadow region through reflection by the magnetosheath or leakage from the plasma torus.
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/GF20-06802L" target="_blank" >GF20-06802L: Analysis of fine structures in auroral radio emissions</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geophysical Research Letters
ISSN
0094-8276
e-ISSN
1944-8007
Volume of the periodical
51
Issue of the periodical within the volume
15
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
e2023GL106652
UT code for WoS article
001288236400001
EID of the result in the Scopus database
2-s2.0-85201055298