2021, Borog, V. V., Timashev, S. F., Борог, Владимир Викторович, Тимашев, Сергей Федорович

© 2021, Allerton Press, Inc.Abstract: It is found that variations in cosmic ray fluxes are observed before powerful earthquakes (magnitude M ≈ 8) at most neutron monitors of the world network located on different continents. Reliable data obtained via flicker-noise spectroscopy are recorded several days before earthquakes and can serve as the basis for creating a predictor of the first level.

2019, Kovylyaeva, A. A., Astapov, I. I., Barbashina, N. S., Borog, V. V., Dmitrieva, A. N., Kompaniets, K. G., Mishutina, Y. N., Petrukhin, A. A., Shutenko, V. V., Yakovleva, E. I., Yashin, I. I., Астапов, Иван Иванович, Барбашина, Наталья Сергеевна, Борог, Владимир Викторович, Дмитриева, Анна Николаевна, Компаниец, Константин Георгиевич, Мишутина, Юлия Николаевна, Петрухин, Анатолий Афанасьевич, Шутенко, Виктор Викторович, Яшин, Игорь Иванович

© 2019, Allerton Press, Inc.Abstract: Results are presented from an analysis of changes in the muon flux of cosmic rays during Forbush effects, recorded by the URAGAN muon hodoscope in the period 2012–2017 and the scintillation muon hodoscope in 2016–2017. Characteristics of the Forbush effects for this period are analyzed. The obtained characteristics of muon flux variations are compared to different parameters of the near heliosphere during the Forbush effects for the 11-year cycle of solar activity.

2021, Mannocchi, G., Trinchero, G., Yashin, I. I., Amelchakov, M. B., Astapov, I. I., Barbashina, N. S., Bogdanov, A. G., Bogdanov, F. A., Borog, V. V., Chiavassa, A., Dmitrieva, A. N., Gromushkin, D. M., Khokhlov, S. S., Kindin, V. V., Kokoulin, R. P., Kompaniets, K. G., Konovalova, A. Y., Kovylyaeva, A. A., Mishutina, Y. N., Ovchinnikov, V. V., Petrukhin, A. A., Shulzhenko, I. A., Shutenko, V. V., Stenkin, Y. V., Vorobyev, V. S., Yurin, K. O., Yurina, E. A., Zadeba, E. A., Яшин, Игорь Иванович, Амельчаков, Михаил Борисович, Астапов, Иван Иванович, Барбашина, Наталья Сергеевна, Богданов, Алексей Георгиевич, Борог, Владимир Викторович, Дмитриева, Анна Николаевна, Громушкин, Дмитрий Михайлович, Хохлов, Семен Сергеевич, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Коновалова, Алена Юрьевна, Мишутина, Юлия Николаевна, Овчинников, Вячеслав Васильевич, Петрухин, Анатолий Афанасьевич, Шульженко, Иван Андреевич, Шутенко, Виктор Викторович, Стенькин, Юрий Васильевич, Воробьев, Владислав Станиславович, Юрина, Екатерина Александровна, Задеба, Егор Александрович

© 2021 IOP Publishing Ltd and Sissa Medialab.The Experimental Complex (EC) NEVOD includes a number of detectors used to carry out basic research of cosmic rays (CR) and their interactions in the energy range 1011-1019 eV and applied research of the heliosphere, magnetosphere and atmosphere of the Earth by the muonography method which is based on the analysis of spatial-angular variations of the muon flux generated by primary CR particles with energies of 10

2020, Kovylyaeva, A., Astapov, I., Dmitrieva, A., Borog, V., Osetrova, N., Yashin, I., Астапов, Иван Иванович, Дмитриева, Анна Николаевна, Борог, Владимир Викторович, Яшин, Игорь Иванович

© 2020, Ubiquity Press. All rights reserved.Muon hodoscope URAGAN continuously detects the angular distribution of muons in a wide range of zenith angles and allows one to obtain information about variations, both in the intensity and in angular characteristics of the muon flux, caused by active processes in the heliosphere, the magnetosphere and atmosphere of the Earth. Various parameters of the muon flux anisotropy and methods of calculation of these parameters are discussed. Real-time processing of a continuous flow of multidimensional data from the muon hodoscope URAGAN is quite a challenge. In the article, methods of formation and primary analysis of the data, their processing in real time and obtaining time series of various parameters of integral counting rate and angular anisotropy of the muon flux, which are important for the physical analysis of modulation processes of cosmic rays in the heliosphere, are presented.

2019, Kovylyaeva, A. A., Astapov, I. I., Barbashina, N. S., Borog, V. V., Dmitrieva, A. N., Kompaniets, K. G., Mishutina, Y. N., Petrukhin, A. A., Shutenko, V. V., Yakovleva, E. I., Yashin, I. I., Астапов, Иван Иванович, Барбашина, Наталья Сергеевна, Борог, Владимир Викторович, Дмитриева, Анна Николаевна, Компаниец, Константин Георгиевич, Мишутина, Юлия Николаевна, Петрухин, Анатолий Афанасьевич, Шутенко, Виктор Викторович, Яшин, Игорь Иванович

© 2019, Pleiades Publishing, Ltd.Results of the study of variations of cosmic ray muon flux at the Earth surface during Forbush decreases registered in 2007–2018 by means of the muon hodoscope URAGAN are presented. The dynamics of the amplitude spectral index at different stages (the decrease, the minimum, and the recovery), which correspond to different phases of the influence of heliospheric disturbances on the flux of cosmic rays for the period 2012 to 2018, is considered. To investigate possible regularities in the behavior of the projection of the relative local anisotropy vector of the muon flux to the South and to the East (rS and rE) during 2007–2018, the distributions of these parameters for four phases (immediately before FD, decrease phase, minimum phase, recovery phase) were calculated.

2024, Borog, V. V., Dmitrieva, A. N., Mishutina, Y. N., Борог, Владимир Викторович, Дмитриева, Анна Николаевна, Мишутина, Юлия Николаевна

2019, Osetrova, N. V., Astapov, I. I., Barbashina, N. S., Borog, V. V., Dmitrieva, A. N., Астапов, Иван Иванович, Барбашина, Наталья Сергеевна, Борог, Владимир Викторович, Дмитриева, Анна Николаевна

© 2019, Allerton Press, Inc.Abstract: At the beginning of September 2017, the Sun was characterized by anomalously high solar activity (SA), which was unusual for the region of the minimum of the 11-year cycle. A great many powerful flares of the M- and X-classes were observed; these were accompanied by powerful coronal mass ejections (CMEs). These events caused strong magnetic storms on the Earth (the Kp index was as high as 8; the Dst index was <−140 nT). In this work, the effect these ejections had on the flux of cosmic rays (CRs) is considered using data from the URAGAN muon hodoscope at the Moscow Engineering Physics Institute. The study is based on an analysis of variations in the cosmic ray muon flux. Results are presented from processing flux intensity via flicker-noise spectroscopy in order to identify geoeffective disturbances of the Earth’s magnetosphere. A predictor that precedes by more than one day the emergence in near-Earth space of disturbances related to CME propagation is obtained.

2019, Borog, V. V., Osetrova, N. V., Борог, Владимир Викторович

Variations of the muon flux of cosmic rays (using data from the URAGAN muon hodoscope) and perturbations of the Earth's magnetic field (OMNI database) were analyzed for August 2018, when there were almost no active regions on the solar disk and the number of sunspots was close to zero. The Kp and Dst geoefficiency coefficients were found to be elevated when the Earth entered the region of fast solar wind from coronal holes. Analysis of the non-stationarity factor C(t) for the muon count time series N-mu(t) shows that there are always elevated C(t) values that are ahead of the fast solar wind from coronal holes by (1-3) days. A predictor was also found in the sequence of values C(t) which is 1-day ahead of the geo-effective storm (SSC-power G3) of the solar CME eruption on August 20.