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Article
Aeronomic Model of Hydrogen–Helium Upper Atmospheres of Hot Giant Exoplanets
The paper presents a one-dimensional aeronomic model of hydrogen–helium upper atmospheres of hot giant exoplanets based on the approximation of single-fluid multicomponent hydrodynamics. Chemical reactions and...
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Article
3D Numerical Model of the Envelope of a Hot Exoplanet Based on Spherical Coordinates
A new 3D parallel numerical code in spherical coordinates has been developed to study the stellar wind flow around hot Jupiter. The peculiarity of the spherical coordinate system in the vicinity of the poles i...
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Article
Effect of Magnetic Field Diffusion on the Structure of Extended Envelopes of Hot Jupiters
The paper presents a modification of the numerical MHD model of extended envelopes of hot Jupiters, in which the magnetic viscosity is considered. In the new version of the numerical model, we included the pro...
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Article
Numerical Model to Study Proton Polar Aurorae on Mars
We present a hybrid model and a magnetohydrodynamic (MHD) one for the solar wind plasma flow around Mars, which serve to calculate the flux of protons of the solar wind and the boundary of the induced magnetos...
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Article
Self-Similar Perturbation of an Accretion Disc around Merging Black Holes
We study the possibility that merging of a binary black hole surrounded by a circumbinary accretion disc may produce an electromagnetic response. When black holes are merging, the mass of a target object decre...
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Article
PRIMARY DISKS AND THEIR OBSERVATIONAL APPEARANCE IN COLLAPSING MAGNETIC ROTATING PROTOSTELLAR CLOUDS
The collapse of the magnetic rotating protostellar cloud 10 \({{M}_{ \odot }}\) ... mass is numerically stud...
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Article
Simulations of the Isothermal Collapse of Magnetic Rotating Protostellar Clouds
We investigate the collapse of magnetic protostellar clouds of mass 10 and \(1\;{{M}_{ \odot }}\) . The collapse is ...
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Article
MHD Model of the Interaction of a Coronal Mass Ejection with the Hot Jupiter HD 209458b
Most hot Jupiters have extended envelopes of gas that spread beyond their Roche lobes. A typical envelope is weakly gravitationally bound to the planet and, therefore, its structure and properties are strongly...
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Article
Three-Dimensional Model of the Flow Structure in the Asynchronous Polar CD Ind during Magnetic Pole Switching
We performed a three-dimensional numerical MHD simulation of the flow structure in the asynchronous polar CD Ind during the switching phases between the magnetic poles of the accretor—a white dwarf. To account...
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Article
Effect of Variations in the Extended Hydrogen Corona of Mars on the Efficiency of Charge Exchange with Solar Wind Protons
This paper presents the results of calculating the efficiency of solar wind proton charge exchange as a function of variations in the column density of hydrogen atoms in the extended corona of Mars. The presen...
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Article
Possible New Envelope Types of Hot Jupiters
Abstract—For the case of the sub-Alfvén regime of the stellar wind flyby around the planet, the flow structure in the vicinity of a hot Jupiter have been studied by three-dimensional numerical simulation. As an e...
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Article
Three-Dimensional Numerical Simulation of a Flow Structure in the Asynchronous Polar CD Ind in the Approximation of an Offset Dipole Magnetic Field of a White Dwarf
The flow structure in the asynchronous polar CD Ind was investigated in the approximation of an offset dipole. Computation results made it possible to identify such system features as the drift of hot spots ov...
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Article
The Orientation Influence of a Hot Jupiter’s Intrinsic Dipole Magnetic Field on the Flow Structure in Its Extended Envelope
The orientation parameter effect of a hot Jupiter’s intrinsic dipole magnetic field on the flow structure in an extended gaseous (ionospheric) envelope of the planet is studied with a three-dimensional numeric...
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Article
Coronal Mass Ejection Effect on Envelopes of Hot Jupiters
Abstract—Currently, hot Jupiters have extended gaseous (ionospheric) envelopes extending far beyond the Roche lobe. The envelopes are loosely bound to the planet and are subject to a strong influence by stellar w...
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Article
Flow Structure in the Eclipsing Polar V808 Aur. Results of 3D Numerical Simulations
The structure of the flows in the eclipsing polar V808 Aur is studied. Comparison of computations with observed light curves is used to identify and clarify a number of features in the system, such as the drif...
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Article
On Possible Types of Magnetospheres of Hot Jupiters
As a rule, the orbits of “hot Jupiter” exoplanets are located close to the Alfven point of the stellar wind of the host star. Many hot Jupiters could be in the sub-Alfven zone, where the magnetic pressure of t...
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Article
A Possible Mechanism for the Radio Emission of Polars
A means of generating the radio emission of polars is proposed, based on cyclotron radiation of thermal electrons in a fluctuating magnetic field. The source of these fluctuations is Alfvén turbulence. Express...
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Article
Possible Electromagnetic Manifestations of Merging Black Holes
The scenario of a merger of two black holes surrounded by an accretion disk is considered. As a result of the emission of gravitational waves, the mass of the central object decreases, and the accretion disk i...
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Article
Features of the Flow Structure in the Vicinity of the Inner Lagrangian Point in Polars
The structures of plasma flows in close binary systems whose accretors have strong intrinsic magnetic fields are studied. A close binary system with the parameters of a typical polar is considered. The results...
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Article
Reduction of mass loss by the hot Jupiter WASP-12b due to its magnetic field
The influence of the dipolar magnetic field of a “hot Jupiter” with the parameters of the object WASP-12b on the mass-loss rate from its atmosphere is investigated. The results of three-dimensional gas-dynamic...
