Search Publications
Modeling of Magnetic Dipolarizations and Turbulence in Earth's Magnetotail as Factors of Plasma Acceleration and Transfer
Malova, H. V.; Popov, V. Yu.; Petrukovich, A. A. +4 more
On the Accuracy of the Conjugation of High-Orbit Satellites with Small-Scale Regions in the Ionosphere
Safargaleev, V. V.; Safargaleeva, N. N.
The degree of uncertainty that arises when mapping high-orbit satellites of the Cluster type into the ionosphere using three geomagnetic field models (T89, T98, and T01) has been estimated. Studies have shown that uncertainty is minimal in situations when a satellite in the daytime is above the equatorial plane of the magnetosphere at the distance…
Using the Subsurface Soil Sounding Radar for Investigating the Structure and Total Electron Content of the Martian Ionosphere
Smirnov, V. M.; Yushkova, O. V.; Marchuk, V. N.
The possibilities of using the Martian soil subsurface sounding radar for investigating the structure of the plasma shell surrounding the planet have been considered. Based on the numerical modeling results and actual soil sounding data, it has been shown that the soil sounding mode of the radio-locating MARSIS radar can be used to assess the stru…
Acceleration and particle transport in collisionless plasma in the process of dipolarization and nonstationary turbulence
Popov, V. Yu.; Petrukovich, A. A.; Zelenyi, L. M. +3 more
This work is devoted to studying the processes of the acceleration of plasma particles in thin current sheets that appear during magnetospheric substorms in the Earth's magnetosphere tail. A numerical model of magnetic dipolarization accompanied by plasma turbulence has been constructed and studied. The model allows one to investigate the particle…
Observations of corotating solar wind structures at radio sounding by signals of the Rosetta and Mars Express spacecraft
Pätzold, M.; Bird, M. K.; Efimov, A. I. +3 more
In the implementation of the space projects Rosetta and Mars Express, a large-scale series of experiments has been carried out on radio sounding circumsolar plasma by decimeter ( S-band) and centimeter ( X-band) signals of the Rosetta comet probe (from October 3 to October 31, 2010) and the Mars Express satellite of Mars (from December 25, 2010 to…
Identification of coronal sources of the solar wind from solar images in the EUV spectral range
Slemzin, V. A.; Shugai, Yu. S.
Methods of localizing coronal sources of the solar wind (SW), such as coronal holes, quasi-stationary fluxes from active regions, and transient sources associated with small-scale active phenomena are considered based on vacuum-ultraviolet (EUV) images of the corona at low solar activity during the initial period of the 24th solar cycle (2010). It…
Frequency fluctuations of coherent signals from spacecraft observed during dual-frequency radio sounding of the circumsolar plasma in 2004-2008
Pätzold, M.; Bird, M. K.; Efimov, A. I. +4 more
We have performed spectral processing of the data of experiments on radio sounding of circumsolar plasma by coherent S- and X-band signals from the spacecraft Ulysses, Mars Express, Rosetta, and Venus Express carried out from 1991 to 2009. The experiments were realized in the mode of coherent response, when a signal stabilized by the hydrogen stan…
Investigation of CME properties using the data of SDO and PROBA2 spacecraft
Fainshtein, V. G.; Egorov, Ya. I.
Formation and motion (at the initial stage) of six limb CMEs detected in the period June 2010 to June 2011 are investigated using the high-resolution data of the PROBA2 and SDO spacecraft combined with the data of SOHO/LASCO coronagraphs. It is demonstrated that several loop-like structures of enhanced brightness originate in the region of CME for…
Investigation of oxygen O2(a1Δ g ) emission on the nightside of Venus: Nadir data of the VIRTIS-M experiment of the Venus Express mission
Drossart, P.; Piccioni, G.; Shakun, A. V. +2 more
The paper is devoted to studies of the oxygen 1.27 µm emission on the Venus nightside using nadir measurements with the imaging spectrometer VIRTIS. A map of the emission distribution in coordinates latitude-local time is drawn for the southern hemisphere, equatorial region, and low latitudes of the northern hemisphere on the basis of observ…
Identification of planetary wave patterns associated with ice seasonal sublimation/condensation dynamics in the polar regions of mars, based on IR mapping spectrometer OMEGA onboard Mars Express
Bibring, J. -P.; Fedorova, A. A.; Kuzmin, R. O. +3 more
Channel C of the orbital hyperspectrometer OMEGA onboard Mars Express spacecraft has delivered data on the distribution and seasonal variability of water ice spectral features at 1.25, 1.5, 2.0 µm, based on which one may conclude about the thickness of ice coverage and microstructure of the upper, optically active ice layer on the Martian su…