Results 21 to 30 of about 468,421 (285)

James Croll, celestial mechanics and climate change

open access: yes, 2021
James Croll was a pioneer in studies of the impact of the slowly changing orbital dynamics of the Earth on climate change. His book Climate and Time in their Geological Relations (1875) was far ahead of its time in seeking correlations between climate ...
M. Longair
semanticscholar   +1 more source

Satellite orbit under influence of a drag - analytical approach [PDF]

open access: yesSerbian Astronomical Journal, 2017
The report studies some changes in orbital elements of the artificial satellites of Earth under influence of atmospheric drag. In order to develop possibilities of applying the results in many future cases, an analytical interpretation of the ...
Martinović M.M., Šegan S.D.
doaj   +1 more source

Five new methods of celestial mechanics

open access: yesAIMS Mathematics, 2020
The last volume of the book “Les méthods nouvelles de la mécanique céleste” by Poincaré [28] was published more than 120 years ago. Since then, the following methods have arisen. 1.
Alexander Bruno
doaj   +1 more source

Hyperbolic normal forms and invariant manifolds: Astronomical applications [PDF]

open access: yesSerbian Astronomical Journal, 2012
In recent years, the study of the dynamics induced by the invariant manifolds of unstable periodic orbits in nonlinear Hamiltonian dynamical systems has led to a number of applications in celestial mechanics and dynamical astronomy.
Efthymiopoulos C.
doaj   +1 more source

Celestial mechanics and polarization optics of the Kordylewski dust cloud in the Earth–Moon Lagrange point L5 – Part II. Imaging polarimetric observation: new evidence for the existence of Kordylewski dust cloud [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Telescopes mounted with polarizers can study the neutral points of the Earths atmosphere, the solar corona, the surface of planets/moons of the Solar System, distant stars, galaxies and nebulae.
Judit Sl'iz-Balogh   +2 more
semanticscholar   +1 more source

DYNAMICAL EVOLUTION NEAR-PARABOLIC COMETS TO HALLEY-TYPE ORBITS

open access: yesOdessa Astronomical Publications, 2017
The capture of comet from the near parabolic flux of the Oort cloud to Halley-type orbits (P < 200 yr, perihelion distanses q < 1,5 AU, and Tisserand parametr T < 2) is investigated Two types of capture into Halley-type orbits are found.
E. E. Biryukov
doaj   +1 more source

Rupture et continuité dans la physique française : Henri Poincaré et les fondements mécaniques de la thermodynamique

open access: yesPhilosophia Scientiæ, 2023
After 1850, Laplacian or Amperean molecular physics found itself in competition with other approaches involving thermodynamics and kinetic theories. Henri Poincaré is one of the very few French scientists to have made a significant contribution to the ...
João Príncipe
doaj   +1 more source

Celestial mechanics and polarization optics of the Kordylewski dust cloud in the Earth–Moon Lagrange point L5 – I. Three-dimensional celestial mechanical modelling of dust cloud formation [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Since the discovery in 1772 of the triangular Lagrange points L4 and L5 in the gravitational field of two bodies moving under the sole influence of mutual gravitational forces, astronomers found a large number of minor celestial bodies around these ...
Judit Sl'iz-Balogh   +2 more
semanticscholar   +1 more source

ELABORATION OF THE BATCH OF THE PROGRAMS FOR CELESTIAL MECHANICS FOR THE COMPUTATION OF THE ASTRONOMICAL EPHEMERIS

open access: yesOdessa Astronomical Publications, 2017
The batch of the programs for celestial mechanics are elaborated in order to obtain the ephemeris of the Sun, the Moon, the planets and their satellites, the asteroids, the comets, the binary stars, the variables stars, determination of the conditions of
V. V. Mikhalchuk
doaj   +1 more source

Symmetries in central-force problems [PDF]

open access: yesSerbian Astronomical Journal, 2003
The two-body problem in central fields (reducible to a central-force problem) models a lot of concrete astronomical situations. The corresponding vector fields (in Cartesian and polar coordinates, extended via collision-blow-up and infinity-blow-up ...
Mioc V., Barbosu M.
doaj   +1 more source

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