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Information × Registration Number 0223U001643, 0122U001474 , R & D reports Title Multi-channel studies of the processes of generating cosmic rays and non-thermal radiation in relativistic jets of astrophysical objects. popup.stage_title Head Danylevskyi Vasyl O., Кандидат фізико-математичних наук Registration Date 01-02-2023 Organization Taras Shevchenko National University of Kyiv popup.description2 Object of the study: Relativistic plasma streams – jets in the astrophysical objects, particularly in the active galactic nuclei (AGN ) and in magnetars, and cosmology gamma-ray bursts. The aim of research is study of the physical environment and cosmic rays and nontermal radiation emission processes in the relativistic plasma streams of the astrophysical objects, particularly in the AGN jets, and cosmologic gamma-bursts, magnetar bursts. Also it is calculation of the electromagnetic radiation spectra with GeV- and TeV-energy from the regions of the cosmic rays acceleration, and calculation of the cosmic rays and nontermal radiation fluxes detecting by the Cherenkov Telescope Array (CTA) in the frame of the CTA program “Active Galactic Nuclei”. Methods of the research are: theoretical physics and astrophysics techniques, observational data analysis tecniques, numerical simulation. The new model of all-wave electromagnetic radiation emission was developed for the relative streams of the AGN and millisecond magnetars newly-born in the cosmologic gamma-bursts. The spectral fluxes were calculated of nontermal, synchrotron mainly, and TeV gamma radiation emitted by flare activity of those astrophysical objects. For the first time the 3C120 galaxy X-ray spectra were simulated for soft and hard ranges in order to estimate the contribution of the nontermal radiation from relativistic jet and termal radiation from the disc-corona system to the total radiation flux. Influence of the active star-forming regions of the star-forming galaxies has been studied on the emission and acceleration ultrahighenergy cosmic rays and nontermal gamma-radiation emission. Star formation rate was calculated using luminocity in the forbidden line of the ionized oxygen and neon for the sample of galaxies from the modern Sloan Digital Sky Survey DR14.  Product Description popup.authors Izotova Iryna Yu. Vavylova Iryna B. Voyzehovskiy Vadym V. Hnatyk Bohdan I. Hnatyk Roman В. Hugnin Oleksandr Е. Fedorova Оlena V. popup.nrat_date 2023-02-01 Close