Results 31 to 40 of about 201,686 (344)
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
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
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]
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]
8 pages, 8 figures ...
Tilley, Daniel, Maartens, Roy
openaire +4 more sources
Multiple imaging by gravitational waves [PDF]
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]
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]
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]
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]
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