Modeling of the solar flare chromosphere and sub-THz radiation with FLARIX and RADYN
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00616823" target="_blank" >RIV/67985815:_____/24:00616823 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1017/S1743921323005276" target="_blank" >http://dx.doi.org/10.1017/S1743921323005276</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1017/S1743921323005276" target="_blank" >10.1017/S1743921323005276</a>
Alternative languages
Result language
angličtina
Original language name
Modeling of the solar flare chromosphere and sub-THz radiation with FLARIX and RADYN
Original language description
The origin of the sub-terahertz (sub-THz) component of radio emission from solar flares, which is characterized by the increase flux with frequency in the 100-400 GHz range, is considered. On the basis of equations of 1D non-LTE radiation hydrodynamics we simulated the altitude distribution of the plasma density and temperature inside the flare loop caused by the interaction of non-stationary beam of accelerated electrons in the form of a triangular pulse with the chromospheric plasma. The FLARIX numerical code was used to calculate the dynamics of the flare plasma parameters at different heights which are compared with the RADYN numerical code. We found that the characteristic heights of the formation of sub-THz emission vary over a wide range with time for both codes. The main contribution to the sub-THz emission comes from the chromospheric and transition region plasma with temperatures of 104 − 105 K.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
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
Article name in the collection
Proceedings of the International Astronomical Union
ISBN
—
ISSN
1743-9213
e-ISSN
1743-9221
Number of pages
6
Pages from-to
420-425
Publisher name
Cambridge University Press
Place of publication
Cambridge
Event location
Jerevan
Event date
Aug 21, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—