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Newton, Einstein and the Advance of Planets’ Orbits
The recent result in C. Corda, Phys. Dark Un. 32,100834 (2021) is re-analyzed. It is indeed shown that, contrary to a longstanding conviction older...
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The Influence of the Bar on the Dynamics of Globular Clusters in the Central Region of the Milky Way. Frequency Analysis of Orbits According to Gaia EDR3 Data
AbstractThis work is devoted to studying the influence of the bar on the orbital dynamics of globular clusters. The orbits of 45 globular clusters in...
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Analysis of Toroidal Alfven Eigenmode-Induced Fast Ion Losses in Globus-M2 Spherical Tokamak
AbstractWith an increase of magnetic field up to 0.8 T and plasma current to 400 kA, fast ion losses rate in the discharges with toroidal Alfven...
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Effective potentials and orbits in Weyl slender disk
By using geodesic equations to obtain a gravitational potential generated from an initially point-like source, we end up in the concept of a nearly...
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Determination of the doubly symmetric periodic orbits in the restricted three-body problem and Hill’s lunar problem
We review some recent progress on the research of the periodic orbits of the N-body problem, and numerically study the spatial doubly symmetric...
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Analysis of Trajectories of Spacecraft Launching into High Circular Orbits of the Moon Artificial Satellite
AbstractThe launch of a spacecraft into the stable, high polar orbits of a Moon artificial satellite is considered. These orbits can be used to...
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A Model of High-Energy Electron Flows in GLONASS Orbits
AbstractModeling the dynamics of energetic electron flows in the Earth’s inner magnetosphere is an important problem in the study of “space weather,”...
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Equivalence between two charged black holes in dynamics of orbits outside the event horizons
Using the Fermi–Dirac distribution function, Balart and Vagenas gave a charged spherically symmetric regular black hole, which is a solution of...
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Relativistic orbits of S2 star in the presence of scalar field
The general theory of relativity predicts the relativistic effect in the orbital motions of S-stars which are orbiting around our Milky-way Galactic...
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Galois orbits of TQFTs: symmetries and unitarity
We study Galois actions on 2+1D topological quantum field theories (TQFTs), characterizing their interplay with theory factorization, gauging, the...
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Bound orbits around charged black holes with exponential and logarithmic electrodynamics
We present exact black hole solutions endowed with magnetic charge coming from exponential and logarithmic nonlinear electrodynamics (NLED)....
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Scale-Invariant Mode in Collisionless Spherical Stellar Systems
AbstractAn analytical solution for the perturbed equations, applicable to all ergodic models of collisionless spherical stellar systems with a single...
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3D Numerical Model of the Envelope of a Hot Exoplanet Based on Spherical Coordinates
AbstractA new 3D parallel numerical code in spherical coordinates has been developed to study the stellar wind flow around hot Jupiter. The...
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Bifurcation of frozen orbits in a gravity field with zonal harmonics
We propose a methodology to study the bifurcation sequences of frozen orbits when the second-order fundamental model of the satellite problem is...
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Two-parametric families of orbits created by three-dimensional galactic-type potentials
One of the main problems of astrophysics is to determine the mean field potential of galaxies. The potentials describe the motion in the central...
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Stability analysis of circular orbits around a traversable wormhole with massless conformally coupled scalar field
We study the stability of circular orbits in the background of a traversable wormhole (TWH) spacetime obtained as a solution of Einstein’s field...
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Effect of quintessence dark energy on the shadow of Hayward black holes with spherical accretion
It is expected that the astrophysical black holes are surrounded by a luminous accretion flow that is a necessary ingredient for imaging a black...
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Stable sets map** with Taylor differential algebra with application to ballistic capture orbits around Mars
Ballistic capture orbits offer safer Mars injection at longer transfer time. However, the search for such an extremely rare event is a...
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Approximating orbits in a rotating gravity field with oblateness and ellipticity perturbations
This paper explores the problem of analytically approximating the orbital state for a subset of orbits in a rotating potential with oblateness and...
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3D homogeneous potentials generating two-parametric families of orbits on the outside of a material concentration
We study three-dimensional homogeneous potentials V = V ( x , y , z ) of degree m which are created outside a finite concentration of matter and they...
