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Massively parallel Bayesian inference for transient gravitational-wave astronomy

open access: yesMonthly notices of the Royal Astronomical Society, 2020
Understanding the properties of transient gravitational waves (GWs) and their sources is of broad interest in physics and astronomy. Bayesian inference is the standard framework for astrophysical measurement in transient GW astronomy.
Rory J. E. Smith   +3 more
semanticscholar   +1 more source

Transdimensional Inference for Gravitational-wave Astronomy with Bilby [PDF]

open access: yesAstrophysical Journal Supplement Series
It has become increasingly useful to answer questions in gravitational-wave astronomy using transdimensional models, where the number of free parameters can be varied depending on the complexity required to fit the data.
Hui Tong   +10 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

Swift/UVOT: 18 Years of Long GRB Discoveries and Advances

open access: yesUniverse, 2023
The Neil Gehrels Swift Observatory (Swift) has been in operation for 18 years. The Ultra-Violet/Optical Telescope (UVOT) onboard Swift was designed to capture the earliest optical/UV emission from gamma-ray bursts (GRBs), spanning the first few minutes ...
Sam Oates
doaj   +1 more source

An introduction to Bayesian inference in gravitational-wave astronomy: Parameter estimation, model selection, and hierarchical models [PDF]

open access: yesPublications Astronomical Society of Australia, 2018
This is an introduction to Bayesian inference with a focus on hierarchical models and hyper-parameters. We write primarily for an audience of Bayesian novices, but we hope to provide useful insights for seasoned veterans as well.
E. Thrane, C. Talbot
semanticscholar   +1 more source

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

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. T. Pang   +3 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

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