Results 11 to 20 of about 207,815 (342)

Gravitational Waves from Gravitational Collapse [PDF]

open access: yesLiving Reviews in Relativity, 2002
Gravitational wave emission from the gravitational collapse of massive stars has been studied for more than three decades. Current state of the art numerical investigations of collapse include those that use progenitors with realistic angular momentum ...
A Buonanno   +256 more
core   +12 more sources

Twisted Gravitational Waves [PDF]

open access: yesPhysical Review D, 2018
In general relativity (GR), linearized gravitational waves propagating in empty Minkowski spacetime along a fixed spatial direction have the property that the wave front is the Euclidean plane.
Bini, Donato   +2 more
core   +4 more sources

Gravitational wave beacons [PDF]

open access: greenPhysical Review D, 2019
9 pages, 11 figures, 4 tables.
C. O. Loustó, James Healy
openalex   +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 Fields and Gravitational Waves [PDF]

open access: yesPhysics Essays, 2021
Abstract For any object with finite velocity, the relative velocity between them will affect the effect between them. This effect can be called the chasing effect (general Doppler effect). LIGO discovered gravitational waves and measured the speed of gravitational waves equal to the speed of light c. Gravitational waves are generated due to the
openaire   +14 more sources

Adaptive Control for Gravitational Wave Detection Formation Considering Time-Varying Communication Delays

open access: yesSensors, 2023
A distributed six-degree-of-freedom (6-DOF) cooperative control for multiple spacecraft formation is investigated considering parametric uncertainties, external disturbances, and time-varying communication delays.
Yu Zhang   +4 more
doaj   +1 more source

GRAVITATIONAL WAVES IN THE HYPERSPACE? [PDF]

open access: yesModern Physics Letters A, 2009
In the framework of the debate on high-frequency gravitational waves (GWs), after a review of GWs in standard General Relativity, which is due for completness, the possibility of merging such a traditional analysis with the hyperspace formalism that has been recently introduced in some papers in the literature, with the goal of a better understanding ...
Corda, Christian   +2 more
openaire   +3 more sources

The Poincaré and BMS flux-balance laws with application to binary systems

open access: yesJournal of High Energy Physics, 2020
Asymptotically flat spacetimes admit both supertranslations and Lorentz transformations as asymptotic symmetries. Furthermore, they admit super-Lorentz transformations, namely superrotations and superboosts, as outer symmetries associated with super ...
Geoffrey Compère   +2 more
doaj   +1 more source

Metric reconstruction from celestial multipoles

open access: yesJournal of High Energy Physics, 2022
The most general vacuum solution to Einstein’s field equations with no incoming radiation can be constructed perturbatively from two infinite sets of canonical multipole moments, which are found to be mapped into each other under gravitational electric ...
Geoffrey Compère   +2 more
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   +3 more sources

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