A5090080598- Astro and Planetary Science
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Planetary Science and Exploration
- Quantum Chromodynamics and Particle Interactions
- Geomagnetism and Paleomagnetism Studies
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Particle Detector Development and Performance
- Space Exploration and Technology
- Gamma-ray bursts and supernovae
- Nuclear physics research studies
- Spacecraft and Cryogenic Technologies
- Resilience and Mental Health
- Geology and Paleoclimatology Research
- Homelessness and Social Issues
- Community Development and Social Impact
- CCD and CMOS Imaging Sensors
- GNSS positioning and interference
- Magnetic confinement fusion research
- Space Science and Extraterrestrial Life
- X-ray Spectroscopy and Fluorescence Analysis
- Stellar, planetary, and galactic studies
- Space Satellite Systems and Control
- Criminal Justice and Corrections Analysis
Voronezh State University of Forestry and Technologies
2025
Université de Toulouse
2013-2023
Institut de Recherche en Astrophysique et Planétologie
2013-2023
Centre National de la Recherche Scientifique
2013-2023
St Petersburg University
2023
Université Toulouse III - Paul Sabatier
2013-2021
Centre National d'Études Spatiales
2018
Max Planck Institute for Solar System Research
2013-2017
Max Planck Society
2013-2016
Roche (France)
2013
Abstract. The lower-thermosphere–ionosphere (LTI) system consists of the upper atmosphere and lower part ionosphere as such comprises a complex coupled to both below space above. atmospheric LTI is dominated by laws continuum fluid dynamics chemistry, while plasma controlled electromagnetic forces driven magnetosphere, solar wind, well wind dynamo. hence domain many different physical processes. However, systematic in situ measurements within this region are severely lacking, although...
The samples of new magnetic composite materials based on natural zeolite (Zt) with varied content (5-30%) nanoparticles cobalt-zinc ferrite Co0,5Zn0,5Fe2O4 (F) were studied in regard their sorption ability for nickel ions extraction from aqueous solution 29,5 mg/dm3 concentration Ni2+. It was established that the time equilibrium systems sorbent-aqueous NiSO4 reach ~20 min each investigated sample. value capacity sorbents increased order Zt<Zt-5F<Zt-10F<Zt-20F<Zt-30F<F. shown...
The article considers the Derrida-Retaux model with a random number of terms, i.e. sequence integer variables defined by relations $ X_{n + 1} = (X_n^{(1)} X_n^{(2)} ... X_n^{(N_n)} - a)^{+}$, $n\ge 0$, where $X_n^{j}$ are independent copies $X_n$, values $N_j$ and identically distributed, $a$ is positive integer. energy in as $Q:=\lim\limits_{n\to\infty} \frac{\mathbb{E}(X_{n})}{(\mathbb{E}N_1)^{n}}$. We present sufficient conditions (in terms distributions $X_0$ $N_1$) for subcritical...
Saturn has a sufficiently strong dipole magnetic field to trap high-energy charged particles and form radiation belts, which have been observed outside its rings. Whether stable belts exist near the planet inward of rings was previously unknown. The Cassini spacecraft's Magnetosphere Imaging Instrument obtained measurements belt that lies just above Saturn's dense atmosphere is decoupled from rest magnetosphere by planet's A- C-rings. extends across D-ring comprises protons produced through...
Abstract Jupiter has the most complex and energetic radiation belts in our Solar System one of challenging space environments to measure characterize in-depth. Their hazardous environment is also a reason why so many spacecraft avoid flying directly through their intense regions, thus explaining how Jupiter’s have kept secrets well hidden, despite having been studied for decades. In this paper we argue these are worth unveiling. vast magnetosphere that encloses them constitute an...
Daedalus MASE (Mission Assessment through Simulation Exercise) is an open-source package of scientific analysis tools aimed at research in the Lower Thermosphere-Ionosphere (LTI). It was created with purpose to assess performance and demonstrate closure mission objectives Daedalus, a concept targeting perform in-situ measurements LTI. However, its successful usage as mission-simulator toolset, has evolved encompass numerous capabilities related LTI science modeling. Inputs are geophysical...
Abstract Cassini discovered Saturn's innermost radiation belt during the end of its mission. The is populated with relativistic protons, probably up to trapping limit ≈20 GeV. It extends from dense atmosphere into and throughout D‐ring. A–C rings separate this entirely previously known belts, suggesting that via cosmic ray albedo neutron decay. We find proton pitch angle distributions are consistent being shaped by losses D‐ring upper rather than, for example, wave‐particle interactions....
Radiation belts of MeV protons have been observed just outward Saturn's main rings. During the final stages mission, Cassini spacecraft will pass through gap between rings and planet. Based on how known radiation Saturn are formed, it is expected that be present in this also bounce tenuous D ring right outside gap. At least one model has suggested intensity near planet could much larger than belts. We inner belt using a technique developed earlier to understand find very different from outer...
Abstract The megaelectron volt proton radiation belts of Saturn are isolated from the middle and outer magnetosphere, source these high‐energy protons is thought to be linked access galactic cosmic rays (GCRs) in system. To validate this hypothesis, it first all necessary determine realistic spectrum GCRs at Saturn. Previously, only analytical attempts were performed order calculate GCR spectra. In letter we provide for time numerical solution determination upper atmosphere rings proposed...
Abstract The moon Dione orbits Saturn at 6.2 radii R S deep in the Kronian magnetosphere. In situ studies of moon‐magnetosphere interaction processes near were possible with Cassini/Huygens mission which flew by close to five times distances between 99 and 516 km. addition, Cassini crossed Dione's L‐shell more than 400 2004 2017 documented variability Saturn's Different flyby geometries allowed study upstream, low‐energy wake, above north pole Dione. We describe here energetic particle...
Saturn is permanently surrounded by 6 discrete proton radiation belts that are rigidly separated the orbits of its inner moons and dense rings. These ideal environments to study details radial diffusion CRAND source process, yet progress has been hindered fact energy spectra not known with certainty: Reanalysis response functions LEMMS instrument on-board Cassini orbiter shown measurements ≲10MeV protons may be easily contaminated ≳10MeV many available characterize a very broad range, so...
&lt;p&gt;Jupiter has the most energetic and complex radiation belts in our solar system. Their hazardous environment is reason why so many spacecraft avoid rather than investigate them, explains how they have kept of their secrets well hidden, despite having been studied for decades. We believe that these are worth unveiling, as Jupiter&amp;#8217;s vast magnetosphere encloses them constitute an unprecedented physical laboratory, suitable both interdisciplinary novel scientific...
Future remote sensing of exoplanets will be enhanced by a thorough investigation our solar system Ice Giants (Neptune-size planets). What can the configuration magnetic field tell us (remotely) about interior, and what implications does that have for structure magnetosphere; energy input into atmosphere, surface geophysics (for example weathering satellites might harbour sub-surface oceans). How monitoring auroral emission help inform future observations from exoplanets? Our Solar System...