Results 21 to 30 of about 1,634,929 (191)

Gravitational Waves from a Core-Collapse Supernova: Perspectives with Detectors in the Late 2020s and Early 2030s

open access: yesGalaxies, 2022
We studied the detectability and reconstruction of gravitational waves from core-collapse supernova multidimensional models using simulated data from detectors predicted to operate in the late 2020s and early 2030s. We found that the detection range will
Marek Szczepańczyk, Michele Zanolin
doaj   +1 more source

A joint search for gravitational wave bursts with AURIGA and LIGO [PDF]

open access: yes, 2008
The first simultaneous operation of the AURIGA detector* and the LIGO observatory* was an opportunity to explore real data, joint analysis methods between two very different types of gravitational wave detectors: resonant bars and interferometers.
Cantley, C. A.   +5 more
core   +2 more sources

Observation of a kilogram-scale oscillator near its quantum ground state [PDF]

open access: yes, 2009
We introduce a novel cooling technique capable of approaching the quantum ground state of a kilogram-scale system—an interferometric gravitational wave detector.
Diaz, Mario C.   +999 more
core   +3 more sources

Prototype superfluid gravitational wave detector [PDF]

open access: yesPhysical Review D, 2021
We study a cross-shaped cavity filled with superfluid $^4$He as a prototype resonant-mass gravitational wave detector. Using a membrane and a re-entrant microwave cavity as a sensitive optomechanical transducer, we were able to observe the thermally excited high-$Q$ acoustic modes of the helium at 20 mK temperature and achieved a strain sensitivity of $
V. Vadakkumbatt   +5 more
openaire   +2 more sources

A Search for Gravitational Waves from Perturbed Black Hole Ringdowns in LIGO Data [PDF]

open access: yes, 2008
According to General Relativity a perturbed black hole will return to a stable configuration by the emission of gravitational radiation in a superposition of quasi-normal modes. Such a perturbation will occur due to the coalescence of a black hole binary,
Goggin, Lisa Maria
core   +1 more source

Precision interferometry in a new shape: higher-order Laguerre-Gauss modes for gravitational wave detection [PDF]

open access: yes, 2012
The sensitivity of the next generation of interferometric gravitational wave detectors will be limited in part by thermal noises of the optics. It has been proposed that using higher-order Laguerre-Gauss (LG) beams in the interferometers can reduce this ...
Fulda, Paul
core   +7 more sources

Gravitoastronomy with neutron stars [PDF]

open access: yes, 2004
Recent advances in gravitational wave detectors mean that we can start to make astrophysically important statements about the physics of neutron stars based on observed upper limits to their gravitational luminosity.
Woan, G., Graham Woan
core   +1 more source

Search for gravitational-wave bursts in LIGO data from the fourth science run [PDF]

open access: yes, 2007
The fourth science run of the LIGO and GEO 600 gravitational-wave detectors, carried out in early 2005, collected data with significantly lower noise than previous science runs.
Abbott, B.   +4 more
core   +2 more sources

Measurement of Thermo-Optic Properties of Thin Film Dielectric Coatings [PDF]

open access: yes, 2013
We have carried out an experiment to test the theory of the thermo-optic response of a dielectric stack mirror coating and to measure parameters of interest in calculating thermo-optic noise. Specifically, we measured the coefficient of thermal expansion
Ogin, Gregory H.
core   +1 more source

The Next Generation Global Gravitational Wave Observatory: The Science Book [PDF]

open access: yes, 2021
The next generation of ground-based gravitational-wave detectors will observe coalescences of black holes and neutron stars throughout the cosmos, thousands of them with exceptional fidelity. The Science Book is the result of a 3-year effort to study the
Regimbau, T.   +90 more
core  

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