Results 41 to 50 of about 138,364 (279)

No tension between assembly models of super massive black hole binaries and pulsar observations

open access: yesNature Communications, 2018
Pulsar timing arrays enable the search for the isotropic gravitational-wave (GW) background originating from super massive black hole binary populations, but impose a stringent upper limit on the GW characteristic amplitude.
Hannah Middleton   +4 more
doaj   +1 more source

Testing strong gravity with gravitational waves and Love numbers [PDF]

open access: yes, 2017
The LIGO observation of GW150914 has inaugurated the gravitational-wave astronomy era and the possibility of testing gravity in extreme regimes. While distorted black holes are the most convincing sources of gravitational waves, similar signals might be ...
Cardoso, V.   +3 more
core   +1 more source

Timescales for Detection of Super-Chandrasekhar White Dwarfs by Gravitational-wave Astronomy [PDF]

open access: yesAstrophysical Journal, 2020
Over the past two decades, the inference of the violation of the Chandrasekhar mass limit of white dwarfs (WDs) from indirect observation has been a revolutionary discovery in astronomy.
Surajit Kalita   +3 more
semanticscholar   +1 more source

Gravitational-wave astronomy with a physical calibration model [PDF]

open access: yesPhysical Review D, 2020
We carry out astrophysical inference for compact binary merger events in LIGO-Virgo's first gravitational-wave transient catalog (GWTC-1) using a physically motivated calibration model.
E. Payne   +4 more
semanticscholar   +1 more source

3D characterization of low optical absorption structures in large crystalline sapphire substrates for gravitational wave detectors

open access: yesScientific Reports, 2021
Very high-quality sapphire substrates are key elements of the cryogenic Japanese gravitational interferometer KAGRA, in which they are used to build the main mirrors, working as the test masses to sense the gravitational waves.
Manuel Marchiò   +3 more
doaj   +1 more source

Sensitivity Studies for Third-Generation Gravitational Wave Observatories [PDF]

open access: yes, 2010
Advanced gravitational wave detectors, currently under construction, are expected to directly observe gravitational wave signals of astrophysical origin.
Abernathy, M.   +138 more
core   +3 more sources

Gravitational Wave Astronomy and Astrophysics

open access: bronzePhysics and High Technology, 2016
Chunglee Kim   +5 more
openalex   +2 more sources

Gravitational-wave astronomy with an uncertain noise power spectral density [PDF]

open access: yesPhysical Review Research, 2020
In order to extract information about the properties of compact binaries, we must estimate the noise power spectral density of gravitational-wave data, which depends on the properties of the gravitational-wave detector. In practice, it is not possible to
C. Talbot, E. Thrane
semanticscholar   +1 more source

Quantum-Enhanced Advanced LIGO Detectors in the Era of Gravitational-Wave Astronomy.

open access: yesPhysical Review Letters, 2019
The Laser Interferometer Gravitational Wave Observatory (LIGO) has been directly detecting gravitational waves from compact binary mergers since 2015. We report on the first use of squeezed vacuum states in the direct measurement of gravitational waves ...
M. Tse   +200 more
semanticscholar   +1 more source

Parameter estimation for strong phase transitions in supranuclear matter using gravitational-wave astronomy [PDF]

open access: yesPhysical Review Research, 2020
At supranuclear densities, explored in the core of neutron stars, a strong phase transition from hadronic matter to more exotic forms of matter might be present.
P. Pang   +3 more
semanticscholar   +1 more source

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