A5041489964- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Planetary Science and Exploration
- Geomagnetism and Paleomagnetism Studies
- Geophysics and Gravity Measurements
- Earthquake Detection and Analysis
- Space Science and Extraterrestrial Life
- Space Satellite Systems and Control
- GNSS positioning and interference
- Magnetic confinement fusion research
- Space Exploration and Technology
- Space exploration and regulation
- Astrophysics and Cosmic Phenomena
- Laser-Plasma Interactions and Diagnostics
- Acute Ischemic Stroke Management
- Atmospheric Ozone and Climate
- earthquake and tectonic studies
- Stroke Rehabilitation and Recovery
- Geological and Geophysical Studies
- Cerebrovascular and Carotid Artery Diseases
- Stellar, planetary, and galactic studies
- Inertial Sensor and Navigation
- Methane Hydrates and Related Phenomena
- Cardiovascular Health and Disease Prevention
Space Research Institute
2015-2024
Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy
2024
University of Michigan–Ann Arbor
2020
Michigan United
2020
Royal Military College of Canada
2020
Russian Academy of Sciences
2004-2014
Institute of Geosphere Dynamics
2007
Goddard Space Flight Center
1997
The evolution of reconstructive surgery brachiocephalic arteries originates from the first operations in form vascular ligation to high-tech ones (carotid endarterectomy, carotid stenting, artery prosthetics, carotid-subclavian anastomosis, bypass surgery, etc.). This work describes detail interrelationships development stroke with pathology (atherosclerosis, dissection, aneurysm, Kimmerle anomaly). Further, stages formation main methods surgical treatment these pathologies. Various...
Between late 1994 and early 2001 the Wind orbiter, generally targeted to stay in solar wind, passed through Earth's magnetosphere ∼50 times. About 450 distinct bow shock crossings were collected during inbound outbound bracketing each perigee. These corresponding vectorial upstream wind measurements by MFI SWE instruments are used study 3-D shape of its motion. Mapping Sun-Earth line terminator plane is realized using a recent analytical model planetary shock. The asymmetry terrestrial...
The location of the Martian magnetopause and that bow shock are studied on basis three‐dimensional solar wind proton spectra measured by TAUS spectrometer board Phobos 2 in its 56 circular orbits. clear strong dependence areomagnetopause position ram pressure was revealed, while practically independent this parameter. In power law expression telling magnetotail thickness D pressure: ∼(ϱυ²) −1/ k , index turned out to be ∼5.9±0.5. close coincidence with = 6 for a dipole geomagnetic field,...
A direct approach for determining the asymptotic MHD Mach cone is formulated and solved. An implicit analytical solution enables calculation of downstream slope cones at any clock angle arbitrary M s , a ϑ bv . The obtained includes all previously known symmetric cases. elongation shift fast mode shock cross-section are studied wide range upstream plasma parameters as well its unusual 'chopped' shape under certain conditions. Our results may be useful planetary modeling numerical codes verification.
The measurements of proton spectra obtained by the TAUS spectrometer on board Phobos 2 spacecraft in elliptical orbits near Mars are presented. A strong deceleration solar wind upstream Martian bow shock was revealed. It can be caused mass loading plasma flow ions originating from hot oxygen/hydrogen corona and/or protons specularly reflected shock. In first case about 100 km/s implies that oxygen could several times denser than it anticipated to (at least during observation period close...
A new analytical model of the bow shock surface is suggested for reasonably accurate and fast prediction this boundary's position near obstacles different shape. For axially symmetric was verified by comparison with experiments results gasdynamic code application a wide range upstream polytropic indexes, 1.15 < γ 2, Mach numbers, 1 M s ∞. The can also be used around nonaxially obstacles.
Intense, prolonged solar flare activity during March 1989 was used to provide a retrospective scenario for predictions of associated interplanetary shocks and accompanying particle radiation at planet Mars. Shocks from five major flares were simulated hit both the Earth Mars interval 9–23 1989. The provided by Hakamada‐Akasofu‐Fry version 2 (HAFv.2) wind model. Since part generally required inputs model (specifically metric radio Type II coronal shock speeds) not available, speeds...
A model of the Martian magnetopause is developed for period maximum solar activity which simultaneously describes (1) observed relation between wind ram pressure ρ V 2 and position in magnetotail, (2) flaring angle, (3) a few crossing observations above day side planet. The shape determined from equation balance across this boundary when both magnetic (with planetary moment (0.8–1.0)×l0 22 G cm 3 ) ionospheric are taken into account magnetosphere. specific feature “stagnation” subsolar...
Solar wind plasma and magnetic data obtained near the Martian terminator bow shock by TAUS energy spectrometer MAGMA magnetometer onboard Phobos 2 spacecraft are analyzed. It is revealed that on average solar stream slowing down just upstream of shock. Nearly inverse correlation found between values velocity decrease undisturbed density for outbound (mostly quasi‐parallel) crossings, while inbound crossings quasi‐perpendicular) this observed only foot. This result permits us to distinguish...
Abstract The data base of the Alpha‐3/Interball‐1 measurements was used for semiempirical 3‐D modeling plasma distribution inside plasmasphere quiet (stationary) geomagnetic conditions. A 2‐D model describing density in meridional plane is based on equations cases thermal equilibrium and collisionless initial partial filling plasmaspheric shells. This then expanded into a one using simple shape plasmapause behavior equatorial along convection streamline. has six free parameters with clear...
Abstract The in situ cold plasma measurements onboard MAGION 5 were carried out with very good time resolution, and this permitted to analyze thin plasmasphere boundary layer (PBL) near the plasmapause. In density N is decreasing exponentially L : ~exp(( PP − )/ W B ), where corresponds characteristic width of PBL, distance within which varies by a factor e , position inversely proportional volume unit magnetic flux tube, whereas its tube. PBL linearly depends on elapsed since most recent...