V. V. Borog, I. I. Astapov, N. S. Barbashina, Yu. N. Mishutina, V. V. Shutenko
{"title":"Analysis of Geoeffective Coronal Mass Ejections in the Flux of the Solar Wind and Cosmic Rays at Ground Level on May 10–12, 2024","authors":"V. V. Borog, I. I. Astapov, N. S. Barbashina, Yu. N. Mishutina, V. V. Shutenko","doi":"10.1134/S1062873825711225","DOIUrl":"10.1134/S1062873825711225","url":null,"abstract":"<p>We propose a complex operational predictor of space weather disturbances. The analysis is based on the data of time series of different types—solar activity in the radio and gamma ranges, the solar wind energy, and variations in the flux of cosmic rays according to the data of the world network of neutron monitors and the muon hodoscope—examined with the method of flicker-noise spectroscopy. This approach was tested in the analysis of a powerful geomagnetic disturbance (<i>Dst</i> = –412 nT). The sequence of predictors has been obtained in real time within a range from 2–3 days to several hours.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"821 - 825"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparing Data on the Times of Solar Proton Release in Solar Proton Events, Obtained in Different Ways","authors":"Yu. P. Ochelkov","doi":"10.1134/S1062873825711286","DOIUrl":"10.1134/S1062873825711286","url":null,"abstract":"<p>Times of the release of solar unrelativistic protons, determined from the scale invariance of temporal profiles of solar proton events, are compared to results from studies in which the times of release for solar relativistic protons in GLE events are determined through velocity dispersion and the initial observation on neutron monitors, allowing for the dependence of the length of Sun‒Earth magnetic lines on the velocity of the solar wind.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"848 - 853"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. S. Makhmutov, G. A. Bazilevskaya, M. V. Philippov, Y. I. Stozhkov, V. I. Erkhov, A. K. Morzabaev, Ye. A. Tulekov, J.-P. Raulin, J. Tacza
{"title":"Variations in Cosmic Rays during the Extreme Geomagnetic Disturbances of May 9‒15, 2024","authors":"V. S. Makhmutov, G. A. Bazilevskaya, M. V. Philippov, Y. I. Stozhkov, V. I. Erkhov, A. K. Morzabaev, Ye. A. Tulekov, J.-P. Raulin, J. Tacza","doi":"10.1134/S1062873825711249","DOIUrl":"10.1134/S1062873825711249","url":null,"abstract":"<p>Results are presented from analyzing variations in cosmic rays and the solar and geomagnetic activity of May 9‒15, 2024. The authors use data from a network of ground-based neutron monitors and measurements of cosmic rays, made by the CARPET instruments and neutron detectors at the Lebedev Physical Institute’s Dolgoprudny Scientific Station; the Eurasian National University in Astana, Kazakhstan; and the CASLEO astronomical complex in the Argentinian Andes. Characteristics of the Forbush decrease in the cosmic ray fluxes on May 10, 2024, are studied, along with the subsequent rise in cosmic rays on May 11. Results show these effects differed in nature.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"830 - 834"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. A. Volchugov, I. I. Astapov, P. A. Bezyazeekov, A. V. Blinov, A. N. Borodin, E. A. Bonvech, N. M. Budnev, A. V. Bulan, N. V. Volkov, D. M. Voronin, A. R. Gafarov, E. O. Gress, O. A. Gress, T. I. Gress, O. G. Grishin, A. Yu. Garmash, V. M. Grebenyuk, A. A. Grinyuk, A. N. Dyachok, D. P. Zhurov, A. V. Zagorodnikov, V. N. Zirakashvili, A. D. Ivanova, A. L. Ivanova, M. A. Iliushin, N. N. Kalmykov, V. V. Kindin, S. N. Kiryuhin, R. P. Kokoulin, N. I. Kolosov, K. G. Kompaniets, E. E. Korosteleva, V. A. Kozhin, E. A. Kravchenko, A. P. Kryukov, L. A. Kuzmichev, A. Chiavassa, M. V. Lavrova, A. A. Lagutin, Yu. E. Lemeshev, B. K. Lubsandorzhiev, N. B. Lubsandorzhiev, A. D. Lukanov, S. D. Malakhov, R. R. Mirgazov, R. D. Monkhoev, E. A. Okuneva, E. A. Osipova, A. L. Pakhorukov, A. Pan, A. D. Panov, L. V. Pankov, A. A. Petrukhin, D. A. Podgrudkov, I. A. Poddubny, E. G. Popova, E. B. Postnikov, V. V. Prosin, A. A. Pushnin, A. Yu. Razumov, R. I. Raikin, G. I. Rubtsov, E. V. Ryabov, V. S. Samoliga, I. Satyshev, L. G. Sveshnikova, A. A. Silaev, A. A. Silaev Jr., A. Yu. Sidorenkov, A. V. Skurikhin, A. V. Sokolov, V. A. Tabolenko, A. B. Tanaev, M. Yu. Ternovoy, L. G. Tkachev, N. A. Ushakov, D. V. Chernov, A. V. Shaikovsky, I. I. Yashin
{"title":"Differential Sensitivity of the TAIGA–IACT Facility in the Stereo Mode of Observations","authors":"P. A. Volchugov, I. I. Astapov, P. A. Bezyazeekov, A. V. Blinov, A. N. Borodin, E. A. Bonvech, N. M. Budnev, A. V. Bulan, N. V. Volkov, D. M. Voronin, A. R. Gafarov, E. O. Gress, O. A. Gress, T. I. Gress, O. G. Grishin, A. Yu. Garmash, V. M. Grebenyuk, A. A. Grinyuk, A. N. Dyachok, D. P. Zhurov, A. V. Zagorodnikov, V. N. Zirakashvili, A. D. Ivanova, A. L. Ivanova, M. A. Iliushin, N. N. Kalmykov, V. V. Kindin, S. N. Kiryuhin, R. P. Kokoulin, N. I. Kolosov, K. G. Kompaniets, E. E. Korosteleva, V. A. Kozhin, E. A. Kravchenko, A. P. Kryukov, L. A. Kuzmichev, A. Chiavassa, M. V. Lavrova, A. A. Lagutin, Yu. E. Lemeshev, B. K. Lubsandorzhiev, N. B. Lubsandorzhiev, A. D. Lukanov, S. D. Malakhov, R. R. Mirgazov, R. D. Monkhoev, E. A. Okuneva, E. A. Osipova, A. L. Pakhorukov, A. Pan, A. D. Panov, L. V. Pankov, A. A. Petrukhin, D. A. Podgrudkov, I. A. Poddubny, E. G. Popova, E. B. Postnikov, V. V. Prosin, A. A. Pushnin, A. Yu. Razumov, R. I. Raikin, G. I. Rubtsov, E. V. Ryabov, V. S. Samoliga, I. Satyshev, L. G. Sveshnikova, A. A. Silaev, A. A. Silaev Jr., A. Yu. Sidorenkov, A. V. Skurikhin, A. V. Sokolov, V. A. Tabolenko, A. B. Tanaev, M. Yu. Ternovoy, L. G. Tkachev, N. A. Ushakov, D. V. Chernov, A. V. Shaikovsky, I. I. Yashin","doi":"10.1134/S106287382571133X","DOIUrl":"10.1134/S106287382571133X","url":null,"abstract":"<p>This work is devoted to the evaluation of the differential sensitivity of the 5 Imaging Atmospheric Cherenkov Telescopes (IACTs) under construction as part of the TAIGA astrophysical complex. The procedure for simulating detected gamma rays with energies from 2 to 200 TeV in the stereo mode of observations is described, along with the procedure of gamma–hadron separation for determining the differential sensitivity of the facility.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"889 - 893"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. P. Kokoulin, N. S. Barbashina, A. G. Bogdanov, V. S. Vorobev, E. A. Zadeba, V. V. Kindin, K. G. Kompaniets, A. Yu. Konovalova, K. I. Mannanova, A. A. Petrukhin, I. Yu. Troshin, S. S. Khokhlov, V. V. Shutenko, E. A. Yurina, I. I. Yashin
{"title":"Zenith-Angle Dependence of Local Muon Density Spectra of Extensive Air Shower near the Horizon","authors":"R. P. Kokoulin, N. S. Barbashina, A. G. Bogdanov, V. S. Vorobev, E. A. Zadeba, V. V. Kindin, K. G. Kompaniets, A. Yu. Konovalova, K. I. Mannanova, A. A. Petrukhin, I. Yu. Troshin, S. S. Khokhlov, V. V. Shutenko, E. A. Yurina, I. I. Yashin","doi":"10.1134/S1062873825711420","DOIUrl":"10.1134/S1062873825711420","url":null,"abstract":"<p>The integral local muon density spectra (LMDS) of (extensive air shower) EAS at large zenith angles were reconstructed on the basis of the DECOR experimental data on muon bundles detected in a long-term measurement series from May 3, 2012, to April 7, 2023. The results were obtained at two threshold muon density values of 0.015 and 0.068 particles/m<sup>2</sup>, which corresponded to the detection of bundles with a multiplicity of at least 3 and at least 5 muons in the detector. At zenith angles less than 80°, the zenith-angle dependence of LMDS is well described by a power function of the cosine of the zenith angle. However, with a further increase in the zenith angle, this dependence changes significantly, and at angles of 87°–88°, the measured values exceed the specified simple extrapolation by about an order of magnitude. This is due to the inapplicability of the flat atmosphere approximation at such angles. A simple equation was obtained that takes into account the curvature of the Earth’s atmosphere.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"873 - 878"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cosmic Ray Acceleration by Shocks in Galactic Halo","authors":"V. N. Zirakashvili, V. S. Ptuskin, S. I. Rogovaya","doi":"10.1134/S1062873825711535","DOIUrl":"10.1134/S1062873825711535","url":null,"abstract":"<p>eRosita bubbles could be created by shocks propagating in the Galactic halo. Cosmic ray acceleration by these shocks is investigated. It is shown that protons can be accelerated up to PeV energies and their amount is enough to explain observations. The origin of higher energy particles related to the past activity of the Galactic center is also discussed.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"989 - 992"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. B. Unatlokov, I. M. Dzaparova, M. M. Kochkarov, A. N. Kurenya, V. B. Petkov, P. S. Striganov, A. F. Yanin
{"title":"Search for Neutrino Events on the Baksan Underground Scintillation Telescope in Coincidence with Gamma-Ray Bursts from Fermi GBM and Swift BAT","authors":"I. B. Unatlokov, I. M. Dzaparova, M. M. Kochkarov, A. N. Kurenya, V. B. Petkov, P. S. Striganov, A. F. Yanin","doi":"10.1134/S1062873825711328","DOIUrl":"10.1134/S1062873825711328","url":null,"abstract":"<p>At the Baksan underground scintillation telescope, work is currently underway to organize a continuous search for multi-messenger events based on muon neutrinos registered by the facility. Gamma-ray bursts are one of the important components of such observations. By now, space gamma-ray telescopes have accumulated a significant amount of data. The facility data have been analyzed in coincidence with the gamma-ray burst catalogs from the Fermi Gamma-Ray Burst Monitor and Swift Burst Alert Telescope instruments.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"868 - 872"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. I. Kovalev, M. V. Kravtsova, S. V. Olemskoy, V. E. Sdobnov
{"title":"Estimating Magnetospheric and Atmospheric Parameters by Effects in Cosmic Rays during March, 2023 Geomagnetic Storm","authors":"I. I. Kovalev, M. V. Kravtsova, S. V. Olemskoy, V. E. Sdobnov","doi":"10.1134/S106287382571150X","DOIUrl":"10.1134/S106287382571150X","url":null,"abstract":"<p>From the global network of neutron monitors, Yakutsk suite of muon telescopes, and the URAGAN muon hodoscope (Moscow), we analyzed the magnetospheric and atmospheric cosmic ray variations in March 2023. We obtained the variations in the planetary system of cosmic ray geomagnetic cutoff rigidities, the mass average air temperature at points of recording muon component. We estimated the parameters for the basic magnetospheric current systems during March 23–25, 2023 geomagnetic storm.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"977 - 980"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. A. Bonvech, N. O. Ovcharenko, O. V. Cherkesova, E. L. Entina, V. I. Galkin, C. G. Azra, D. V. Chernov, V. A. Ivanov, T. A. Kolodkin, D. A. Podgrudkov, T. M. Roganova, M. D. Ziva
{"title":"Estimation of Extensive Air Shower Primary Parameters Using Cherenkov Light Angular Distribution in the SPHERE-3 Experiment","authors":"E. A. Bonvech, N. O. Ovcharenko, O. V. Cherkesova, E. L. Entina, V. I. Galkin, C. G. Azra, D. V. Chernov, V. A. Ivanov, T. A. Kolodkin, D. A. Podgrudkov, T. M. Roganova, M. D. Ziva","doi":"10.1134/S1062873825711572","DOIUrl":"10.1134/S1062873825711572","url":null,"abstract":"<p>Some plans on further development of the SPHERE experiment are presented. Namely, reasons for the introduction of an additional detector of the angular distribution of Cherenkov light, pointed at zenith, are given. It can only work together with the main telescope but can yield important information on the primary particle direction and mass. Construction and capabilities of the detector are discussed, draft algorithms for direction definition are revealed, and sensitivity to the primary mass is shown.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"1007 - 1010"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. V. Bogomolov, V. V. Bogomolov, A. F. Iyudin, V. E. Eremeev, V. V. Kalegaev, I. N. Myagkova, V. I. Osedlo, S. I. Svertilov, I. V. Yashin
{"title":"Solar Cosmic Rays and Hard X-Ray Emission from Solar Flares in the First Half of 2024 according to the Data of Experiments on Moscow State University CubeSat Satellites","authors":"A. V. Bogomolov, V. V. Bogomolov, A. F. Iyudin, V. E. Eremeev, V. V. Kalegaev, I. N. Myagkova, V. I. Osedlo, S. I. Svertilov, I. V. Yashin","doi":"10.1134/S1062873825711274","DOIUrl":"10.1134/S1062873825711274","url":null,"abstract":"<p>A discussion is made of the results of observations of electrons of solar cosmic rays and hard X-ray emission from solar flares in the first half of 2024 in experiments on CubeSat satellites on a low polar orbit (LEO, altitude ∼550 km and inclination ∼98°) using scientific instruments created at the Skobeltsyn Institute of Nuclear Physics (SINP), Moscow State University.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 6","pages":"843 - 847"},"PeriodicalIF":0.48,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
