Results 11 to 20 of about 64,982 (304)
Weak Gravitational Lensing by Dark Clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 We calculate the abundance of dark-matter concentrations that are sufficiently overdense to produce a detectable weak-gravitational-lensing signal. Most of these overdensities are virialized halos containing identifiable X-ray and/or optical clusters ...
Kamionkowski, Marc, Weinberg, Nevin N.
core +10 more sources
Circular orbit of a particle and weak gravitational lensing [PDF]
Physical Review D, 2020 The purpose of this paper is twofold. First, we introduce a geometric approach to study the circular orbit of a particle in static and spherically symmetric spacetime based on Jacobi metric.
Zonghai Li, Guodong Zhang, A. Övgün
semanticscholar +7 more sources
Image Simulations for Strong and Weak Gravitational Lensing [PDF]
Symmetry, 2020 Gravitational lensing has been identified as a powerful tool to address fundamental problems in astrophysics at different scales, ranging from exoplanet identification to dark energy and dark matter characterization in cosmology.
A. Plazas
semanticscholar +5 more sources
Weak gravitational lensing with the Square Kilometre Array [PDF]
Proceedings of Advancing Astrophysics with the Square Kilometre Array — PoS(AASKA14), 2015 We investigate the capabilities of various stages of the SKA to perform world-leading weak gravitational lensing surveys. We outline a way forward to develop the tools needed for pursuing weak lensing in the radio band.
Abdalla, F. B. +14 more
core +8 more sources
Weak gravitational lensing by stringy black holes [PDF]
The European Physical Journal Plus, 2019 In this paper, we discuss the weak gravitational lensing in the context of stringy black holes. Initially, we examine the deflection angle of photon by charged stringy black hole.
W. Javed +3 more
semanticscholar +6 more sources
KiDS-i-800: comparing weak gravitational lensing measurements from same-sky surveys [PDF]
, 2018 We present a weak gravitational lensing analysis of 815 deg of i-band imaging from the Kilo-Degree Survey (KiDS-i-800). In contrast to the deep r-band observations, which take priority during excellent seeing conditions and form the primary KiDS data set
A. Amon +23 more
openalex +3 more sources
Flat-Sky Pseudo-Cls Analysis for Weak Gravitational Lensing [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We investigate the use of estimators of weak lensing power spectra based on a flat-sky implementation of the Pseudo-Cl (PCl) technique, where the masked shear field is transformed without regard for masked regions of sky.
Marika Asgari +3 more
openalex +3 more sources
Weak gravitational lensing and shadow of a GUP-modified Schwarzschild black hole in the presence of plasma [PDF]
Physics of the Dark Universe, 2023 Husanboy Hoshimov +4 more
openalex +3 more sources
Weak Gravitational Lensing in Fourth Order Gravity [PDF]
Physical Review D, 2011 For a general class of analytic $f(R,R_{\alpha\beta}R^{\alpha\beta},R_{\alpha\beta\gamma\delta}R^{\alpha\beta\gamma\delta})$ we discuss the gravitational lensing in the Newtonian Limit of theory.
Stabile, A., Stabile, An.
core +3 more sources
Weak gravitational lensing of the CMB [PDF]
Physics Reports, 2006 Weak gravitational lensing has several important effects on the cosmic microwave background (CMB): it changes the CMB power spectra, induces non-Gaussianities, and generates a B-mode polarization signal that is an important source of confusion for the signal from primordial gravitational waves.
Antony Lewis, A. Challinor
openalex +5 more sources