A5070009185- Solar and Space Plasma Dynamics
- Ionosphere and magnetosphere dynamics
- Atmospheric Ozone and Climate
- Astrophysics and Cosmic Phenomena
- Solar Radiation and Photovoltaics
- Dark Matter and Cosmic Phenomena
- Stellar, planetary, and galactic studies
- Earthquake Detection and Analysis
- Astro and Planetary Science
- Gamma-ray bursts and supernovae
- Geomagnetism and Paleomagnetism Studies
- Geophysics and Gravity Measurements
- Radiation Therapy and Dosimetry
- Impact of Light on Environment and Health
- Planetary Science and Exploration
- Astronomy and Astrophysical Research
- Radioactive Decay and Measurement Techniques
- Calibration and Measurement Techniques
- Radioactivity and Radon Measurements
- Cosmology and Gravitation Theories
- Atomic and Subatomic Physics Research
- Radioactive contamination and transfer
- Historical Astronomy and Related Studies
- Meteorological Phenomena and Simulations
- Astrophysics and Star Formation Studies
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
2015-2024
Institute of Engineering Physics
2023
Moscow Engineering Physics Institute
2023
Russian Academy of Sciences
1985-2014
The balloon measurements of the ionizing radiation have been performed at several locations USSR and in Antarctic every day for more than 30 years. A number latitude surveys were also accomplished. methods data presentation are described.
Abstract The paper summarizes the properties of precipitation magnetospheric electrons with energy above several hundred keV recorded by observing X‐ray bremsstrahlung in polar stratosphere Murmansk region, Russia, 1961–2019. Precipitation occurrence rate demonstrates a clear dependence on solar activity maximum at decay phase 11‐year cycle, similarly to variability occurrences high‐speed wind streams (HSSWS). energetic electron (EEP) event series is often initiated moderate geomagnetic...
The experimental data on the galactic cosmic ray fluxes obtained from measurements in atmosphere during period 2008-2010 are presented.They include unusual long-term of low solar activity.In 2009, we recorded highest (particles with energy more than 0.2 GeV) history particle measurements.The reasons for extremely modulation (GCR) briefly discussed.
The regions of interaction between solar wind streams different speed, known as corotating regions, form an almost constantly existing structure the inner heliosphere. Using observational data on main characteristics heliosphere, important for GCR modulation, and results 3D MHD modeling Monte Carlo simulation recurrent variations, we analyze importance longitude-averaged heliosphere propagation, possible ways simulating long-term intensity variations with respect to regions.
The effects of the 22-year variation solar magnetic fields in galactic cosmic ray (GCR) intensity were first observed and interpreted as manifestations inversion high-latitude field properties heliospheric by Lebedev Physical Institute team 1973. Since then, these have been studied already for 50 years.
 situation with is clear periods medium low sunspot activity — heliosphere consists two unipolar “hemispheres” separated a wavy global current sheet characterized general polarity A...
Quasi-biennial oscillation (QBO) is a well-known variation in solar activity, interplanetary parameters, geomagnetic disturbances and cosmic rays. Solar QBO translated to the space via open magnetic flux modulates intensity of The highest negative correlation exists rays with heliospheric field strength B as well scalar product BV, where V wind velocity, ray being delayed by ≈ 1 month. During 50 years monitoring periods demonstrated some intermittency. It argued that Gnevyshev Gap effect...
A survey of the data on measured particle fluxes and rate ionization in atmosphere is presented.Measurements as a function altitude, time cut-off rigidity are compared with simulations production from cosmic rays.The generally give reasonable representation data.However, some discrepancies found.The solar modulation found to be factor 2.7±0.8greater than that observed for muons alone near sea level.
The regions of interaction between solar wind streams different speed, known as corotating regions, form an almost constantly existing structure the inner heliosphere. Using observational data on main characteristics heliosphere, important for GCR modulation, and results 3D MHD modeling Monte Carlo simulation recurrent variations, we analyze importance longitude-averaged heliosphere propagation, possible ways simulating long-term intensity variations with respect to regions.