Results 21 to 30 of about 45,387 (211)

Daemons and DAMA: Their Celestial-Mechanics Interrelations [PDF]

open access: yes, 2007
The assumption of the capture by the Solar System of the electrically charged Planckian DM objects (daemons) from the galactic disk is confirmed not only by the St.Petersburg (SPb) experiments detecting particles with ...
Allen C. W.   +8 more
core   +2 more sources

Editorial for the Special Issue “Relativistic Astrophysics”

open access: yesUniverse, 2022
Relativistic Astrophysics is the branch of astrophysics that studies astronomical phenomena and celestial bodies, for which classical mechanics and Newton’s law of gravitation are inapplicable to creation of suitable models and we have to generalize ...
Francesco De Paolis   +2 more
doaj   +1 more source

The Relative Inertiality - The Relative Mechanical Movement of Bodies in Outer Space [PDF]

open access: yesINCAS Bulletin
Even though classical mechanics states that it is not possible to find an inertial reference frame, relative measurements are used to determine the mechanical behaviour of celestial bodies with very small dimensions compared to the distances between them.
Sorin Stefan RADNEF
doaj   +1 more source

On the Possibility of Determining the Distance to the Galactic Center from the Geometry of Spiral Arm Segments

open access: yesOpen Astronomy, 2015
A new approach to determining the solar galactocentric distance, R0, from the geometry of spiral-arm segments is proposed. Geometric aspects of the problem are analyzed and a simplified three-point method for estimating R0 from objects in a spiral ...
Nikiforov I. I., Veselova A. V.
doaj   +1 more source

An approach to Mel'nikov theory in celestial mechanics [PDF]

open access: yes, 1999
Using a completely analytic procedure - based on a suitable extension of a classical method - we discuss an approach to the Poincar\'e-Mel'nikov theory, which can be conveniently applied also to the case of non-hyperbolic critical points, and even if the
Cicogna, G., Santoprete, M.
core   +3 more sources

Gamification in studying celestial mechanics using Kerbal Space Program

open access: yesАвіаційно-космічна техніка та технологія
The rapid development of technologies and their implementation in the educational process provide an opportunity to apply gamification, that is, the use of game mechanics and elements for in-depth study of a complex technical discipline.
Pavlo Ponomarenko
doaj   +1 more source

Bifurcations of the Lagrangian orbits from the classical to the curved 3-body problem [PDF]

open access: yes, 2015
We consider the 3-body problem of celestial mechanics in Euclidean, elliptic, and hyperbolic spaces, and study how the Lagrangian (equilateral) relative equilibria bifurcate when the Gaussian curvature varies.
Diacu, Florin
core   +1 more source

Hydrodynamics, Cosmogony, and Cosmology in publications of V. V. Perekhrest: from Planetary Vortices to Galaxies and Dark Energy

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2016
Publications of V. I. Perekhrest with numerous applications of a class of exact vortex solutions to the Euler equations for incompressible media to celestial mechanics, cosmogony, and cosmology, have been studied.
V. L. Borsch
doaj   +1 more source

The Proximities of Asteroids and Critical Points of the Distance Function [PDF]

open access: yesSerbian Astronomical Journal, 2010
The proximities are important for different purposes,for example to evaluate the risk of collisions of asteroids or comets with the Solar-System planets.
Milisavljevic, S.
doaj   +3 more sources

Titius-Bode’s Relation and Distribution of Exoplanets [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2010
The distance distribution in our planetary system has been a controversial matter. Two kinds of important issues on Titius-Bode’s relation have been discussed up to now: one is if there is a simple mathematical relation between distances of natural ...
Heon-Young Chang
doaj   +1 more source

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