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A Comparative Analysis of Quasi-Periodic Processes in the Magnetospheric Current Sheet and the Current Sheets of the Solar Corona
Zimovets, I. V.; Lukin, A. S.; Artemiev, A. V.
Reconnection of magnetic field lines represents a universal process of releasing the stored energy of the magnetic field and its transformation into the thermal energy of plasma and the energy of accelerated charged particles. The initialization and proceeding of the magnetic reconnection process are essentially related with the dynamics of a spat…
Use of the DBM Model to the Predict of Arrival of Coronal Mass Ejections to the Earth
Kaportseva, K. B.; Shugay, Yu. S.
This paper analyzes the results of modeling coronal mass ejection (CME) propagation in 2010-2011 obtained using input data from different sources: CME catalogs SEEDS and CACTus, and predictions of the velocity of quasi-stationary solar wind fluxes, as an environment, through which CMEs propagate. As the model of quasi-stationary solar wind fluxes,…
Some Features of Solar Proton Events on March 7, 2011, and on February 20, 2014
Vlasova, N. A.; Kalegaev, V. V.; Tulupov, V. I.
The paper presents the results of studying two solar proton events—on March 7, 2011, and on February 20, 2014—which are associated with solar flares having almost the same power and located at close heliolongitudes, on the western side of the solar disk. The work was done on the basis of the experimental data obtained from the ACE spacecraft and t…
Disturbed Flows in the Inner Solar Wind and Near Earth's Orbit
Pätzold, M.; Bird, M. K.; Efimov, A. I. +3 more
Coronal mass ejections from active regions on the Sun can be observed as series of individual events separated in time in the inner solar wind and near-Earth plasma. To find such events we have analyzed experimental data of dual-frequency solar wind radio sounding by the Rosetta and Mars Express spacecraft. The cycles of experiments performed in 2…
Observation of Disturbed Plasma Structures in the Environment of the Sun and Near-Earth Space with Radio Sounding and Local Measurements
Bird, M. K.; Efimov, A. I.; Lukanina, L. A. +3 more
An experiment on radio sounding of the circumsolar plasma by signals from the Mars Express spacecraft in 2013 was carried out in the period from March 4 through May 31. The investigated characteristics were the frequency of signals in the centimeter and decimeter ranges and the differential frequency. A number of events were recorded in which the …
Physical Mechanism of a Solar Flare Based on the Accumulation of the Energy in the Magnetic Field of the Current Sheet in the Solar Corona
Podgorny, I. M.; Podgorny, A. I.
During a solar flare, the magnetic energy of ~1032 erg is released in a few dozens of minutes. The invariability of the magnetic field on the solar surface during flares proves the appearance of a flare in the corona. An analysis of the dynamics of the electron temperature of the solar atmosphere provides independent evidence of the cor…
Current Sheets with Multicomponent Plasma in Magnetospheres of Planets of the Solar System
Popov, V. Yu.; Petrukovich, A. A.; Grigorenko, E. E. +2 more
A self-consistent hybrid model of a thin current sheet (TCS) with a thickness of the order of several ion gyroradii is proposed that takes into account the multicomponent nature of collisionless space plasma. Several plasma components can be present in the tails of the magnetospheres of terrestrial planets (for example, the Earth, Mercury, Mars, a…
Comparison of Magnetic and Plasma Overshoots of Interplanetary Shocks
Yermolaev, Yu. I.; Eselevich, V. G.; Zastenker, G. N. +2 more
The structure of interplanetary shock fronts was studied based on the data from the BMSW plasma spectrometer, installed on the SPEKTR-R spacecraft, supplemented by magnetic field measurements on the WIND spacecraft. Special attention was paid to periodic growths (overshoots) in the value of the ion flux or magnetic field relative to their mean val…
Comparing the Features of Generation of CMEs Moving with Different Speed in the Field of View of the LASCO Coronagraphs
Fainshtein, V. G.; Zagainova, Yu. S.
This study is aimed at finding an answer to the following question: are there any fundamental differences in the generation of coronal mass ejections (CMEs) with different speeds, especially low and high speeds, detected in the field of view of LASCO coronagraphs? Fast CMEs are conventionally understood as mass ejections with a linear projection v…
Investigation of the Effect of a Longitudinal Magnetic Field Component on the Dynamics of Protons inside a Plasmoid
Malova, H. V.; Malykhin, A. Yu.; Grigorenko, E. E.
Kinetic effects of the dynamics of protons in plasmoids with a non-zero longitudinal ( By) magnetic field component in a current sheet (CS) of a geomagnetic tail are considered. The results of modeling proton dynamics and a description of the mechanism of emergence of "north-south" density asymmetry are presented. The mechanism that is possibly re…