Theoretical relations between model parameters and Metis observables for eruptive prominences and coronal mass ejections

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F25%3A00619114" target="_blank" >RIV/67985815:_____/25:00619114 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0365901" target="_blank" >https://hdl.handle.net/11104/0365901</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202453116" target="_blank" >10.1051/0004-6361/202453116</a>

Result language
angličtina
Original language name
Theoretical relations between model parameters and Metis observables for eruptive prominences and coronal mass ejections
Original language description
Context. We investigate the behavior of the plasma in eruptive prominences and coronal mass ejections in characteristic physical conditions. Aims. We aim to demonstrate various relations between the plasma parameters and radiation properties relevant to Solar Orbiter and Metis observations. Methods. Our method is based on 2D non-local thermodynamic equilibrium (non-LTE) modeling of moving structures that are externally illuminated from the solar disk. We have focused on temperatures below 105 K and a range of gas pressures to investigate the opacity effects in the L alpha line. Overall, we applied a large grid of isothermal and isobaric models. Results. Our results are presented in the form of various correlation plots showing relationships between the plasma parameters and radiation properties relevant to Metis observations. We also demonstrate the relative importance of radiative and collisional ionization of hydrogen and the ratio between radiative and collisional excitation of the L alpha line. Our results point to the need to carry out optically thick non-LTE modeling for specific plasma conditions. The visible light (VL) emission was also obtained for the purposes of a comparison with the Metis data.
Czech name
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Czech description
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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)

Project
<a href="/en/project/GA25-18282S" target="_blank" >GA25-18282S: ESA space coronagraphy with Czech participation</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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