20.500.12556/RUL-169926 Theoretical relations between model parameters and Metis observables for eruptive prominences and coronal mass ejections 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 Lα 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 Lα 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. solar atmosphere solar prominences solar filaments coronal mass ejections Sončeva atmosfera Sončeva protuberance Sončevi filamenti koronarni izbruhi snovi true false true Angleški jezik Slovenski jezik Članek v reviji 2025-06-17 13:35:11 2025-06-17 13:35:12 2025-06-18 04:07:49 0000-00-00 00:00:00 2025 0 0 9 str. art. no. ǂA14 Vol. 696 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-04-01 523.9 1432-0746 10.1051/0004-6361/202453116 239668483 https://www.aanda.org/articles/aa/pdf/2025/04/aa53116-24.pdf 1 986017aa-4b6d-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=211724 aa53116-24.pdf aa53116-24.pdf 1 4D81B08467CFABCF18435F14EF660905 c899c5a94b517a4b7801687e74caebf631d0b6b5840df195f34afac5ddcd5434 ac131137-4b6e-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=211725 Fakulteta za matematiko in fiziko 0 0 0