Numerical Simulation of Sub-Terahertz Thermal Emission: RADYN Code

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00539776" target="_blank" >RIV/67985815:_____/20:00539776 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1134/S0016793220080174" target="_blank" >https://doi.org/10.1134/S0016793220080174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S0016793220080174" target="_blank" >10.1134/S0016793220080174</a>

Result language

angličtina

Original language name

Numerical Simulation of Sub-Terahertz Thermal Emission: RADYN Code

Original language description

The temporal evolution of thermal bremsstrahlung in the sub-terahertz range is calculated for F-CHROMA models of the flare chromosphere and transition region (https://www.fchroma.org). These models are calculated based on the numerical solution of the system of equations of radiation hydrodynamics with the RADYN code, which describes the response of chromospheric plasma to the flux of accelerated electrons in the form of a triangular pulse. It is found that the positive slope of the spectrum in the frequency range of 93-400 GHz is formed during the entire burst. The sub-THz radiation peak can be both ahead and behind the maximum of the function of the injection of energetic electrons depending on the number and index of the spectrum of precipitating particles. In some cases, the time profile of the sub-THz radiation is quite complex and pulsating due to gas-dynamic phenomena in the chromosphere and transition region.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

<a href="/en/project/LM2015067" target="_blank" >LM2015067: Atacama Large Millimeter / Submillimeter Array – participation of the Czech Republic</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Geomagnetism and Aeronomy

ISSN

0016-7932

e-ISSN

1555-645X

Volume of the periodical

60

Issue of the periodical within the volume

8

Country of publishing house

RU - RUSSIAN FEDERATION

Number of pages

8

Pages from-to

1038-1049

UT code for WoS article

000612382300007

EID of the result in the Scopus database

2-s2.0-85099966605