Results 31 to 40 of about 201,686 (344)

Simulating angular momentum of gravitational field of a rotating black hole and spin momentum of gravitational waves

open access: yesSistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2021
In this research, we simulated the angular momentum of gravitational field of a rotating black hole and the spin momentum of gravitational waves emitted from the black hole.
Yoshio Matsuki, Petro Bidyuk
doaj   +1 more source

Relative attitude stability analysis of double satellite formation for gravity field exploration in space debris environment

open access: yesScientific Reports, 2023
Spacecraft operating in low orbit are at risk of being hit by space debris. In the debris environment, the impact of debris is likely to cause the double satellite formation to exit science mode or even lead to the divergence of the control system, thus ...
Baocai Pan, Yunhe Meng
doaj   +1 more source

Pseudoplane-wave gravitational calibrator for gravitational wave observatories

open access: yesPhysical Review D, 2023
The precisions of existing gravitational calibrators for gravitational wave observatories are limited by their dependence on the relative position between the calibrators and the observatory's test masses. Here we present a novel geometry consisting of four quadrupole rotors placed at the vertices of a rectangle centered on the test mass.
M. P. Ross   +10 more
openaire   +4 more sources

Energy Contents of Gravitational Waves in Teleparallel Gravity [PDF]

open access: yes, 2009
The conserved quantities, that are, gravitational energy-momentum and its relevant quantities are investigated for cylindrical and spherical gravitational waves in the framework of teleparallel equivalent of General Relativity using the Hamiltonian ...
Ehlers J.   +7 more
core   +1 more source

Gravitational waves in preheating [PDF]

open access: yesClassical and Quantum Gravity, 2000
8 pages, 8 figures ...
Tilley, Daniel, Maartens, Roy
openaire   +4 more sources

Multiple imaging by gravitational waves [PDF]

open access: yes, 1997
Gravitational waves act like lenses for the light propagating through them. This phenomenon is described using the vector formalism employed for ordinary gravitational lenses, which was proved to be applicable also to a non-stationary spacetime, with the
Braginsky V. B.   +9 more
core   +3 more sources

The Polarizations of Gravitational Waves [PDF]

open access: yesUniverse, 2018
The gravitational wave provides a new method to examine General Relativity and its alternatives in the high speed, strong field regime. Alternative theories of gravity generally predict more polarizations than General Relativity, so it is important to study the polarization contents of theories of gravity to reveal the nature of gravity.
Yungui Gong, Shaoqi Hou
openaire   +4 more sources

Gravitational Lensing of Continuous Gravitational Waves [PDF]

open access: yesUniverse, 2021
Continuous gravitational waves are analogous to monochromatic light and could therefore be used to detect wave effects such as interference or diffraction. This would be possible with strongly lensed gravitational waves. This article reviews and summarises the theory of gravitational lensing in the context of gravitational waves in two different ...
Marek Biesiada, Sreekanth Harikumar
openaire   +3 more sources

Gravitational wave astronomy [PDF]

open access: yesClassical and Quantum Gravity, 1999
29 pages, 2 figures, as submitted for special millenium issue of Classical and Quantum ...
openaire   +6 more sources

Gravitational waves at their own gravitational speed [PDF]

open access: yesInternational Journal of Modern Physics D, 2018
Gravitational waves propagate at the speed of light in general relativity, because of their special relativistic basis. However, light propagation is linked to the electromagnetic phenomena, with the permittivity and permeability constants as the determining factors.
C. S. Unnikrishnan, George T. Gillies
openaire   +3 more sources

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