Estimation of the Fragmentation Effect in the Registration of Superheavy Nuclei of Galactic Cosmic Rays in Pallasites

• Published in: Journal of experimental and theoretical physics Vol. 134; no. 4; pp. 523 - 527
• Main Authors: Babaev, P. A., Bagulya, A. V., Volkov, A. E., Gorbunov, S. A., Kalinina, G. V., Konovalova, N. S., Okateva, N. M., Polukhina, N. G., Sadykov, Zh. T., Starkov, N. I., Starkova, E. N., Soe, Than Naing, Chernyavskiy, M. M., Shchedrina, T. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-04-2022; Springer; Springer Nature B.V
• Subjects: Analysis; Astronomical models; Classical and Quantum Gravitation; Cosmic rays; Elementary Particles; Estimation; Fragmentation; Galactic cosmic rays; Interstellar matter; Meteorites; Nuclei; Olivine; Particle and Nuclear Physics; Physics; Physics and Astronomy; Quantum Field Theory; Relativity Theory; Solid State Physics; Spectra
• ISSN: 1063-7761; 1090-6509
• DOI: 10.1134/S106377612204015X

We report on the results of model calculations for estimating the fragmentation effect in the registration of heavy and superheavy nuclei of galactic cosmic rays in olivine crystals from pallasite at the Marjalahti and Eagle Station. The measurement of fluxes and spectra of heavy and superheavy nuclei in cosmic rays is a sensitive method for studying the composition and possible sources of cosmic rays, the processes occurring in the sources themselves and in the interstellar medium, and forms the basis for constructing models of cosmic ray confinement in the Galaxy. The database obtained in the OLIMPIYA experiment, which includes characteristics of 21743 tracks, is the largest database for charges
Z
> 55 at present. The estimates of fragmentation of nuclei in pallasites, which have been obtained based on model calculations, show that the effect of this process on the resulting charge spectrum is insignificant.