Concept
Gravitational-wave astronomy
Related publications (135)
Time-Delay Cosmography: Measuring the Hubble Constant and Other Cosmological Parameters with Strong Gravitational Lensing
Frédéric Courbin, Martin Raoul Robert Millon
Multiply lensed images of a same source experience a relative time delay in the arrival of photons due to the path length difference and the different gravitational potentials the photons travel through. This effect can be used to measure absolute distance ...
Springer2024Weak gravitational lensing measurements of Abell 2744 using JWST and shear measurement algorithm pyRRG-JWST
David Richard Harvey, Richard Massey
We update the publicly available weak lensing shear measurement algorithm pyRRG for the JWST, and apply it to UNCOVER DR1 imaging of galaxy cluster Abell 2744. At short wavelengths (
Oxford Univ Press2024Nanomechanical resonators with low dissipation for quantum optomechanics
Fields of technology as diverse as microwave filter construction, characterization of material interfaces with atomic precision, and detection of gravitational waves from astronomical sources employ mechanical resonators at their core. The utility of mecha ...
EPFL2023CosmoLattice: A modern code for lattice simulations of scalar and gauge field dynamics in an expanding universe
Daniel Garcia Figueroa, Adrien Florio, Wessel Valkenburg, Francisco Torrenti
This paper describes CosmoGattice, a modern package for lattice simulations of the dynamics of interacting scalar and gauge fields in an expanding universe. CosmoGattice incorporates a series of features that makes it very versatile and powerful: i) it is ...
ELSEVIER2023Potential scientific synergies in weak lensing studies between the CSST and Euclid space probes
Jean-Paul Richard Kneib, Jean-Luc Starck, Huanyuan Shan
Aims. With the next generation of large surveys poised to join the ranks of observational cosmology in the near future, it is important to explore their potential synergies and to maximize their scientific outcomes. In this study, we aim to investigate the ...
EDP SCIENCES S A2023Intrinsic-Strain Engineering by Dislocation Imprint in Bulk Ferroelectrics
Dragan Damjanovic, Fangping Zhuo
We report an intrinsic strain engineering, akin to thin filmlike approaches, via irreversible hightemperature plastic deformation of a tetragonal ferroelectric single-crystal BaTiO3. Dislocations wellaligned along the [001] axis and associated strain field ...
AMER PHYSICAL SOC2023A simple theoretical model for estimating the frequency characteristics of black hole mergers
Gravitational waves, despite predicted within the Theory of General Relativity about a century ago, were observed experi-mentally only in the last few years, thanks to the recent advances of the LIGO and Virgo detectors. In this work, we introduce a simple ...
CANADIAN SCIENCE PUBLISHING2022Novel Search for High-Frequency Gravitational Waves with Low-Mass Axion Haloscopes
Gravitational waves (GWs) generate oscillating electromagnetic effects in the vicinity of external electric and magnetic fields. We discuss this phenomenon with a particular focus on reinterpreting the results of axion haloscopes based on lumped-element de ...
2022Gravitational wave signal from primordial magnetic fields in the Pulsar Timing Array frequency band
The NANOGrav, Parkes, European, and International Pulsar Timing Array (PTA) Collaborations have reported evidence for a common-spectrum process that can potentially correspond to a stochastic gravitational wave background (SGWB) in the 1-100 nHz frequency ...
AMER PHYSICAL SOC2022The GRANDMA network in preparation for the fourth gravitational-wave observing run
Jieping Zhu, Jean-Paul Richard Kneib, Xiao Wang
GRANDMA is a world-wide collaboration with the primary scientific goal of studying gravitational-wave sources, discovering their electromagnetic counterparts and characterizing their emission. GRANDMA involves astronomers, astrophysicists, gravitational-wa ...
SPIE-INT SOC OPTICAL ENGINEERING2022