16 citations · 46 across the 21 of their papers we have counts for
22 papers
Morphology-based retrieval of local wave parameters and phase shifts in satellite-observed atmospheric disturbances
Yuriy Klymenko, Alla Fedorenko, Evgen Kryuchkov +1
Currently available methods for processing atmospheric wave disturbances are often based on integral wavelet transform techniques, which efficiently estimate spectral data but are…
Interaction of upper hybrid waves with dust-ion-magnetoacoustic waves and stable two-dimensional solitons in dusty plasmas
Volodymyr M. Lashkin, Oleg K. Cheremnykh
We obtain a two-dimensional nonlinear system of equations for the electrostatic potential envelope and the low-frequency magnetic field perturbation to describe the interaction of…
Modulational instability and collapse of internal gravity waves in the atmosphere
Volodymyr M. Lashkin, Oleg K. Cheremnykh
Nonlinear two-dimensional internal gravity waves (IGWs) in the atmospheres of the Earth and the Sun are studied. The resulting two-dimensional nonlinear equation has the form of a…
Self-consistent equilibrium of a force-free magnetic flux rope
O. K. Cheremnykh, V. M. Lashkin
We present an exact solution to the problem of a self-consistent equilibrium force-free magnetic flux rope. Unlike other approaches, we use magnetostatic equations and assume only…
Three-dimensional solitons in fractional nonlinear Schrödinger equation with exponential saturating nonlinearity
Volodymyr M. Lashkin, Oleg K. Cheremnykh
We study the fractional three-dimensional (3D) nonlinear Schrödinger equation with exponential saturating nonlinearity. In the case of the Lévy index , this equation can be…
Self-consistent equilibrium of a helical magnetic flux rope in a finite-pressure plasma
Oleg K. Cheremnykh, Viktor Fedun, Volodymyr M. Lashkin
We present an analytical model of the self-consistent equilibrium of a magnetic flux rope which is obtained in cylindrical geometry. The equilibrium azimuthal magnetic field and pl…
Fourth-order modon in a rotating self-gravitating fluid
Volodymyr M. Lashkin, Oleg K. Cheremnykh
We present a two-dimensional nonlinear equation to govern the dynamics of disturbances in a rotating self-gravitating fluid. The nonlinear term of the equation has the form of a Po…
Propagation of acoustic-gravity waves in non-uniform wind flows of the polar atmosphere
A. K. Fedorenko, E. I. Kryuchkov, O. K. Cheremnykh +2
Satellite observations of acoustic-gravity waves in the polar regions of the atmosphere indicate a close connection of these waves with wind flows. The paper investigates the pecul…
Atmospheric waves disturbances from the solar terminator according to the VLF radio stations data
Cheremnykh O., Fedorenko A., Voitsekhovska A. +4
The perturbations from the solar terminator in the range of acoustic-gravity waves (AGWs) periods from 5 minutes to 1 hour were analysed with the use of measurements of VLF radio s…
development of models of acoustic-gravity waves in the upper atmosphere (overview)
O. K. Cheremnykh, A. K. Fedorenko, E. I. Kryuchkov +2
We present the results of studies of acoustic-gravity waves (AGWs) in the upper atmosphere of the Earth. The work has been mainly aimed at studying the peculiarities of atmospheric…
Nonlinear internal gravity waves in the atmosphere: Rogue waves, breathers and dark solitons
Volodymyr M. Lashkin, Oleg K. Cheremnykh
We study nonlinear internal gravity waves (IGWs) in the atmosphere. The reductive perturbation method is used to derive a system of two-dimensional nonlinear equations for the enve…
Acoustic-gravity waves in quasi-isothermal atmospheres with a random vertical temperature profile
V. M. Lashkin, O. K. Cheremnykh
We study acoustic-gravity waves in a quasi-isothermal atmosphere in the presence of a weak random addition to the vertical temperature profile, which simulates the real atmosphere…
Three-dimensional vortex dipole solitons in self-gravitating systems
Volodymyr M. Lashkin, Oleg K. Cheremnykh, Zahida Ehsan +1
We derive the nonlinear equations governing the dynamics of three-dimensional (3D) disturbances in a nonuniform rotating self-gravitating fluid under the assumption that the charac…
Influence of the Earth's atmosphere rotation on the spectrum of acoustic-gravity waves
O. K. Cheremnykh, S. O. Cheremnykh, D. I. Vlasov
It was shown in a recent paper by Cheremnykh et al. (Advances in Space Research, 2022) that taking into account the rotation of the Earth's atmosphere leads to the appearance of a…
Specific evanescent acoustic-gravity modes in isothermal atmosphere
A. K. Fedorenko, Yu. O. Klymenko, O. K. Cheremnykh +1
We demonstrate the existence a family of four specific evanescent wave modes in an isothermal atmosphere. These modes are the solutions of the linearized system of hydrodynamic equ…
Identification of acoustic gravity waves from satellite measurements
Yu. O. Klymenko, A. K. Fedorenko, E. I. Kryuchkov +3
A method for recognizing the types of linear acoustic gravity waves (AGWs) in the atmosphere from satellite measurements is proposed. It is shown that the polarization relations be…
Vortex structures and electron beam dynamics in magnetized plasma
V. I. Maslov, O. K. Cheremnykh, A. P. Fomina +3
The formation of vortex structures at reflection of electron beam from the double layer of the Jupiter ionosphere is investigated in this paper. And also the influence of these vor…
Recover of acoustic-gravity wave properties revealed from measurements of VLF radio wave amplitudes
A. K. Fedorenko, E. I. Kryuchkov, O. K. Cheremnykh +2
A simple method has been proposed to determine acoustic-gravity wave (AGW) properties at mesosphere heights from measurements of VLF radio signals. For relatively short paths (less…
Generation of low-frequency kinetic waves at the footpoints of pre-flare coronal loops
Kryshtal Alexandr, Voitsekhovska Anna, Cheremnykh Oleg +3
In this study we discuss the excitation of low frequency plasma waves in the lower-middle chromosphere region of loop footpoints for the case when the plasma can be considered in a…
Two-frequency approach to the theory of atmospheric acoustic-gravity waves
O. K. Cheremnykh, E. I. Kryuchkov, A. K. Fedorenko +1
The propagation of acoustic-gravity waves (AGWs) in the stratified isothermal atmosphere is analyzed using methods of the oscillation theory. It is shown that AGW in the atmosphere…
Incompressible MHD modes in the thin magnetically twisted flux tube
O. K. Cheremnykh, V. Fedun, A. N. Kryshtal +1
Context. Observations have shown that twisted magnetic fields naturally occur, and indeed are omnipresent in the Sun's atmosphere. It is therefore of great theoretical interest in…
Magnetospheric ULF waves driven by external sources
Oleksiy Agapitov, Oleg Cheremnykh
The multi-spacecraft missions (Cluster and THEMIS) observations allowed to collect large data base for Ultra Low Frequency (ULF) waves properties, their localization, and sources.…