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Information × Registration Number 0221U103992, 0118U003607 , R & D reports Title Astrophysical processes on different spatial and time scales: comparison of models with observational data. popup.stage_title Head Melekh Bohdan Ya, Доктор фізико-математичних наук Registration Date 01-03-2021 Organization Ivan Franko National University of Lviv popup.description2 Report on SRW: 298 pages, 62 figures, 50 tables., 224 citations. Key words: SOLAR ATMOSPHERE, WHITE DWARFS, HII REGIONS, NOVAE, PRIMORDIAL HELIUM, FIRST MOLECULES, PLANETARY NEBULAE, DARK ENERGY. Research objects -- nebular environments, the atmosphere of the Sun and other stars, white dwarfs and matter in the pre-galactic epoch. The purpose of the work is to study the transfer of ionizing radiation within astrophysical plasma; study the evolution of its structures on different spatio-temporal scales and verification of models using astronomical observations; study of the structure of white dwarfs taking into account the magnetic field, inter-particle interactions, temperature and rotation. Methods - method for the photoionization modelling of the nebular environment , method for calculating the densities of the first molecules, the method to describe the collapsing perturbations of the matter density, the method to calculate the characteristics of stars with axial rotation, method to calculate the photoionization cross section of the H- ion, method to determine the magnetic fields in the layers of the lower photosphere. Results of the research. Modelling of planetary nebulae envelopes, HII regions, white dwarfs and their physical characteristics are specified. The Chandrasekhar model has been improved in the theory of degenerate dwarfs. The physical and evolutionary characteristics of symbiotic nova envelopes were calculated. The dependencies of the molecules, atoms and ions densities in the halo, the temperature of the baryon component on the initial amplitudes of cosmological perturbations were obtained in models with dynamic dark energy. Statistically significant relationships were found between the evolutionary parameters of galaxies (halos) and network metrics. A method to solve the 3D equations of radiation transfer in inhomogeneous plasma has been developed. Peculiarities of convection in the atmospheric layers of the solar flare are considered. Product Description popup.authors Apunevych Stepan Ye. Bilinskyi Andriy I. Buhajenko Oleh S. Bufan Yuriy Ya. Vavrukh Markiyan V. Hirnyak Mariya B. Dzikovskyi Dmytro V. Kaserkevych Valeriy S. Kasheba Myroslav D. Koshmak Ihor O. Kulinich Yuriy A. Melekh Dmytro R. Novosyadlyj Bohdan S. Prysyazhnyi Andriy I. Smerechynskyi Sviatoslav V. Stelmakh Oksana M. Stodilka Myroslav I. Tyshko Nestor L. Khmilevska Olha A. Chornodolskyy Yaroslav M. popup.nrat_date 2021-03-01 Close