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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

Pinpointing gravitational waves via astrometric gravitational wave antennas. [PDF]

open access: yesSci Rep
AbstractThe direct detection of gravitational waves by ground-based optical interferometers has opened a new window in astronomy. Besides, the sensitivity of these linear detectors to the direction of arrival of an incoming gravitational wave is limited compared to current prospects of high-precision, space-based, astrometry.
Crosta M   +5 more
europepmc   +5 more sources

The First Detection of Gravitational Waves

open access: yesUniverse, 2017
This article deals with the first detection of gravitational waves by the advanced Laser Interferometer Gravitational Wave Observatory (LIGO) detectors on 14 September 2015, where the signal was generated by two stellar mass black holes with masses 36
Andrzej Królak, Mandar Patil
doaj   +3 more sources

Precise Orbit Determination and Accuracy Analysis for BDS-3 Satellites Using SLR Observations

open access: yesRemote Sensing, 2023
Satellite laser ranging (SLR) is the space geodetic technique with the highest degree of range, measuring precision and distances right down to the millimeter level.
Zicong An   +8 more
doaj   +1 more source

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

New determination of |V ub /V cb | from B s 0 $$ {B}_s^0 $$ → {K − , D s − $$ {D}_s^{-} $$ }μ + ν

open access: yesJournal of High Energy Physics, 2023
We update the full set of B ¯ $$ \overline{B} $$ s → K form factors using light-cone sum rules with an on-shell kaon. Our approach determines the relevant sum rule parameters — the duality thresholds — from a Bayesian fit for the first time.
Carolina Bolognani   +2 more
doaj   +1 more source

High-Accuracy Guide Star Catalogue Generation with a Machine Learning Classification Algorithm

open access: yesSensors, 2021
In order to detect gravitational waves and characterise their sources, three laser links were constructed with three identical satellites, such that interferometric measurements for scientific experiments can be carried out.
Jianming Zhang   +4 more
doaj   +1 more source

Evanescent gravitational waves [PDF]

open access: yesPhysical Review D, 2020
We describe the properties of evanescent gravitational waves (EGWs)---wave solutions of Einstein equations which decay exponentially in some direction while propagating in another. Evanescent waves are well-known in acoustics and optics and have recently received much attention due to their extraordinary properties such as their transverse spin and ...
Golat, Sebastian   +2 more
openaire   +4 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

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