2019, Modzelewska, R., Bazilevskaya, G. A., Boezio, M., Krainev, M. B., Koldashov, S. V., Mayorov, A. G., Mayorov,A.G., Mayorova, M. A., Troitskaya, I. K., Майоров, Андрей Георгиевич, Юлбарисов, Рустам Фаритович

© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).We have investigated the energy and time dependences of the amplitude of the proton galactic cosmic ray intensity 27-days oscillations in 2007-2008 from the data of the PAMELA and ARIN? spectrometers on board the RESURS DK-1 satellite. We have used different types of harmonic analysis, such as Fourier and wavelet analysis. The time profiles and amplitude dependences for the rigidities of cosmic ray particles from ~300 MV to tens of GV were obtained. It is shown that the amplitude-rigidity dependence cannot be described by a power law at low energies, the amplitude decreases with decreasing rigidity starting from ~ 1 GV. For a physical interpretation, we have studied the relationship between the 27-day variations of GCR and heliospheric parameters: solar wind velocity and heliospheric magnetic field.

2019, Golub, O. A., Mayorov, A. G., Koldobskiy, S., Malakhov, V., Yulbarisov, R. F., Голуб, Ольга Александровна, Майоров, Андрей Георгиевич, Колдобский, Сергей Александрович, Малахов, Виталий Валерьевич, Юлбарисов, Рустам Фаритович

© 2019, Pleiades Publishing, Ltd.We present the energy dependence of the cross section for the inelastic interaction of protons with tungsten in the energy range from an order of 1 to hundred GeV using the data of the PAMELA space experiment. It was intended for the precision measurements of the cosmic ray fluxes of different nature and include a set of detectors for the reliable determination of the particle characteristics. We present the comparison of the obtained results with the measurements at accelerators and with existing theoretical models. The results of the work can be demanded for the development of numerical models describing particles’ interactions.

2022, Golubkov, V., Khlopov, M., Kirichenko, A., Kravtsova, A., Mayorov, A., Yulbarisov, R., Хлопов, Максим Юрьевич, Майоров, Андрей Георгиевич, Юлбарисов, Рустам Фаритович

Several candidates for antihelium events have been found in the AMS-02 experiment. They cannot be created by natural astrophysical sources and, if confirmed, imply the existence of antimatter stars in our galaxy. This immediately reduces the class of inflationary models with baryosynthesis to those that can provide the creation of an antimatter domain of surviving size together with the general baryon asymmetry of the Universe. To confront the future results of experimental searches for cosmic antihelium with predictions of this hypothesis, we develop numerical studies of the creation and propagation of antihelium flux from antimatter globular clusters in the Galaxy. This article presents the results of such a simulation: a function of the magnetic cut-off for the penetration of antihelium nuclei into the Galaxy disk and an estimate of the energy range in which the search and detection of antihelium is most optimal.

2023, Malakhov, V. V., Golubkov, V. S., Mayorov, A. G., Rodenko, S. A., Yulbarisov, R. F., Малахов, Виталий Валерьевич, Майоров, Андрей Георгиевич, Роденко, Светлана Александровна, Юлбарисов, Рустам Фаритович

2021, Yulbarisov, R. F., Galikyan, N. G., Mayorov, A. G., Golub, O. A., Malakhov, V. V., Rodenko, S. A., Юлбарисов, Рустам Фаритович, Галикян, Норайр Грачьяевич, Майоров, Андрей Георгиевич, Голуб, Ольга Александровна, Малахов, Виталий Валерьевич, Роденко, Светлана Александровна

© 2021, Allerton Press, Inc.Abstract: Several cases of 27-day variations in the flux of galactic cosmic rays (GCRs) are detected by the PAMELA and ARINA spectrometers from June 2006 to January 2016. GCR characteristics are reconstructed, the temporal behavior of the amplitude of variations is described for different energies, and amplitude–energy dependences are obtained for several episodes of variations arising.

2020, Modzelewska, R., Bazilevskaya, G. A., Boezio, M., Krainev, M. B., Koldashov, S. V., Mayorov, A. G., Mayorova, M. A., Troitskaya, I. K., Yulbarisov, R. F., Майоров, Андрей Георгиевич, Юлбарисов, Рустам Фаритович

© 2020. The American Astronomical Society. All rights reserved.Using measurements from the PAMELA and ARINA spectrometers on board the Resurs-DK1 satellite, we have examined the 27 day intensity variations in galactic cosmic ray (GCR) proton fluxes in 2007–2008. The PAMELA and ARINA data allow for the first time a study of time profiles and the rigidity dependence of the 27 day variations observed directly in space in a wide rigidity range from ∼300 MV to several gigavolts. We find that the rigidity dependence of the amplitude of the 27 day GCR variations cannot be described by the same power law at both low and high energies. A flat interval occurs at rigidity R = 〈0.6–1.0〉 GV with a power-law index γ = −0.13 ± 0.44 for PAMELA, whereas for R ≥ 1 GV, the power-law dependence is evident with index γ = −0.51 ± 0.11. We describe the rigidity dependence of the 27 day GCR variations for PAMELA and ARINA data in the framework of the modulation potential concept using the force-field approximation for GCR transport. For a physical interpretation, we have considered the relationship between the 27 day GCR variations and solar wind plasma and other heliospheric parameters. Moreover, we have discussed possible implications of MHD modeling of the solar wind plasma together with a stochastic GCR transport model concerning the effects of corotating interaction regions.

2019, Golub, O. A., Mayorov, A. G., Malakhov, V. V., Rodenko, S. A., Yulbarisov, R. F., Голуб, Ольга Александровна, Майоров, Андрей Георгиевич, Малахов, Виталий Валерьевич, Роденко, Светлана Александровна, Юлбарисов, Рустам Фаритович

© 2019 Author(s).We present the energy dependence of the cross section for the inelastic interaction of protons with the tungsten in the energy range from an order GeV to a hundred GeV using the data of the PAMELA space experiment. It was intended for the precision measurements of the cosmic ray fluxes of different nature and include a set of detectors for the reliable determination of the particle characteristics. We present the comparison of the obtained results with the measurements at accelerators and with existing theoretical models. The results of the work can be demanded for the development of numerical models describing particle's interactions.

2024, Siruk, S. A., Kuznetsov, A. V., Mayorov, A. G., Yulbarisov, R. F., Сирук, Степан Александрович, Майоров, Андрей Георгиевич, Юлбарисов, Рустам Фаритович

2021, Alekseev, V. V., Mayorov, A. G., Epifanov, A. A., Malakhov, V. V., Rodenko, S. A., Yulbarisov, R. F., Майоров, Андрей Георгиевич, Малахов, Виталий Валерьевич, Роденко, Светлана Александровна, Юлбарисов, Рустам Фаритович

© 2021, Pleiades Publishing, Ltd.Abstract: In this paper, we present an overview of antiproton fluxes measured in modern spectrometer-type experiments PAMELA (2006–2016) and AMS-02 (2011–present). These experiments provided important data on the fluxes of antiprotons of galactic origin and contributed towards the discovery of secondary antiprotons in the near-Earth space. We discuss the impact of the scientific discovery made in the PAMELA experiment as well as the confirmation of these results in the AMS-02 experiment, which was done with high statistical accuracy and additional extension of measurements into the high energy region. An outline of the existing theoretical models that attempt to describe the newly obtained spectra by introducing additional sources of galactic antiprotons is provided.

2018, Юлбарисов, Р. Ф., Юлбарисов, Рустам Фаритович, Майоров Андрей Георгиевич

Работа посвящена анализу различных характеристик корональных дыр на Солнце и установлению взаимосвязи между ними и периодическими вариациями галактических космических лучей, которые наблюдались с сентября 2007 года по сентябрь 2008 года. На основе синоптических солнечных карт создан текстовый файл, содержащий информацию о корональных дырах. Произведен их отбор, в результате которого получена периодическая картина. Проведен корреляционный анализ. Вычислена кросс-корреляция между полученным распределением, потоком протонов, а также различными гелиосферными характеристиками.