Results 61 to 70 of about 783,055 (280)
TITIUS-BODE`S Relation and 55 Cancri [PDF]
Journal of Astronomy and Space Sciences, 2008 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 bodies orbiting a central body, and the other is if there is any physical basis for such
Heon-Young Chang
doaj +1 more source
Bifurcations of the Lagrangian orbits from the classical to the curved 3-body problem [PDF]
, 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
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Astronomische Nachrichten, EarlyView.ABSTRACT Classification of galaxies, stars, and quasars using spectral data is fundamental to astronomy, but often relies heavily on redshift. This study evaluates the performance of 10 machine learning algorithms on SDSS data to classify these objects, with a particular focus on scenarios where redshift information is unavailable.
Debashis Chatterjee, Prithwish Ghosh
wiley +1 more source
Empirical Stability Criteria for 3D Hierarchical Triple Systems. I. Circumbinary Planets
The Astronomical JournalIn this work we revisit the problem of the dynamical stability of hierarchical triple systems with applications to circumbinary planetary orbits. We derive critical semimajor axes based on simulating and analyzing the dynamical behavior of 3 × 10 ^8 ...
Nikolaos Georgakarakos +3 more
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Simulation of the Motion of Stars Escaping from the Galactic Center
Open Astronomy, 2015 Motions of stars escaping from the Galactic center are simulated. It is shown that the Galactic bar reduces the initial velocity needed to escape from the Galaxy.
Shirokova K. S.
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Modification of earth's gravity sphere [PDF]
Theoretical and Applied Mechanics, 2013 The standard radius of the Earth's gravity sphere is 917.000 km. Here we present that the radius is 1.400.000 km.
Vujičić Veljko A.
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Time's Arrow, Music of the Spheres, December 8, 1994 [PDF]
, 1994 This is the concert program of the Time's Arrow, Music of the Spheres performance on Thursday, December 8, 1994 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue, Boston, Massachusetts. Works performed were Primo Intermedio by Antonio
School of Music, Boston University
core
Weakly asymptotically quasiperiodic solutions for time-dependent Hamiltonians with a view to celestial mechanics [PDF]
Journal of Differential Equations, 2022 Donato Scarcella
semanticscholar +1 more source
Motion of Test Bodies in a Quasi-Newtonian Potential. II. Comparison with Experiments
Open Astronomy, 2003 The paper deals with the motion of test bodies in a Quasi-Newtonian potential for which the expressions corresponding to the effects of General Relativity are found. It is impossible to choose the values of parameters of the potential which could be in a
Pyragas K., Svirskas K.
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Periodic orbits in the restricted three-body problem and Arnold's $J^+$-invariant [PDF]
, 2017 We apply Arnold's theory of generic smooth plane curves to Stark-Zeeman systems. This is a class of Hamiltonian dynamical systems that describes the dynamics of an electron in an external electric and magnetic field, and includes many systems from ...
A. M. Lyapunov +28 more
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