Results 161 to 170 of about 206 (178)

On Special Optical Modes and Thermal Issues in Advanced Gravitational Wave Interferometric Detectors. [PDF]

Living Rev Relativ, 2009
Vinet JY.
europepmc   +1 more source

First measurement of the Weyl potential evolution from the Year 3 Dark Energy Survey data: Localising the σ8 tension

Bonvin C, Tutusaus I, Grimm N.
europepmc   +1 more source

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Gravitational Lensing: From μ-Lensing to Cosmic Shear Experiments

2005
These notes present the physics of gravitational lensing in various cosmological contexts. The equations and approximations that are commonly used to describe the displacement field or the amplification effects are presented. Several observational applications are discussed. They range from micro-lensing effects to cosmic shear detection that is a weak
Francis Bernardeau
exaly   +2 more sources

Optimal cosmology from gravitational lensing: utilising the magnification and shear signals

2015
Gravitational lensing studies the distortions of a distant galaxy’s observed size, shape or flux due to the tidal bending of photons by matter between the source and observer. Such distortions can be used to infer knowledge on the mass distribution of the intervening matter, such as the dark matter halos in which clusters of individual galaxies may ...
openaire   +1 more source

Weak gravitational lensing shear estimation with metacalibration for the Roman High-Latitude Imaging Survey

Monthly Notices of the Royal Astronomical Society, 2023
Mike Jarvis, Michael Troxel, Ami Choi
exaly  

Weak Lensing Shear Correlation with the O'Reilly Effect: Testing Informational Contributions to Strong Gravitational Lens Morphology in SDSS J1206+4332

This paper presents the first synthetic modeling test of the Relativity of Information and Geometric Principles (RIGP) framework applied to strong gravitational lensing. Using the well-characterized quad lens system SDSS J1206+4332, we superimpose an informational perturbation term Sμν onto a standard singular isothermal ellipsoid (SIE) plus external ...
Claude, Oreilly, Colin
openaire   +1 more source

Gravitational lensing of gravitational waves: effect of microlens population in lensing galaxies

Monthly Notices of the Royal Astronomical Society, 2021
Anupreeta More, Sukanta Bose, Jasjeet Bagla   +2 more
exaly  

The intrinsic alignment of galaxies and its impact on weak gravitational lensing in an era of precision cosmology

Physics Reports, 2015
Mustapha Ishak
exaly  

Gravitational lensing from topological void curvature: geodesic tortuosity, cluster shear proles, and the toroidal annular ring prediction

We demonstrate that topological voids in Regge calculus produce quantitative gravita-tional lensing signals with a unique, falsifiable prediction: an annular convergence ring atthe toroidal void major radius (Rmaj ≈ 100 kpc) that no spherically symmetric dark mat-ter model can produce.
openaire   +1 more source

Current status of weak gravitational lensing

New Astronomy Reviews, 2002
Henk Hoekstra
exaly