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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
Baryons, neutrinos, feedback and weak gravitational lensing [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 (Abridged) The effect of baryonic feedback on the dark matter mass distribution is generally considered to be a nuisance to weak gravitational lensing. Measurements of cosmological parameters are affected as feedback alters the cosmic shear signal on angular scales smaller than a few arcminutes.
Catherine Heymans +2 more
exaly +6 more sources
Weak Gravitational Lensing around Bardeen Black Hole with a String Cloud in the Presence of Plasma
Symmetry, 2023 The effect of spacetime curvature on optical properties may provide an opportunity to suggest new tests for gravity theories. In this paper, we investigated gravitational weak lensing around a Bardeen black hole with the string clouds parameter.
Aripov Mersaid +2 more
exaly +2 more sources
Weak gravitational lensing [PDF]
Physics Reports, 2001 Review; 223 pages; figures embedded; to be submitted to Physics Reports; constructive comments are ...
Matthias Bartelmann, Peter Schneider
exaly +4 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
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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
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Weak Gravitational Lensing and Its Cosmological Applications [PDF]
Annual Review of Nuclear and Particle Science, 2008 Weak gravitational lensing is a unique probe of the dark side of the universe: It provides a direct way to map the distribution of dark matter around galaxies and clusters of galaxies as well as on cosmological scales. Furthermore, the measurement of the weak lensing–induced distortions of the shapes of distant galaxies is a potentially powerful probe
Henk Hoekstra, Bhuvnesh Jain
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Weak gravitational lensing and shadow of a GUP-modified Schwarzschild black hole in the presence of plasma [PDF]
Physics of the Dark Universe, 2023 In this work, we have studied weak gravitational lensing effect around black hole and determine shadow radius in GUP-corrected-Schwarzschild spacetime (S-GUP) in presence of plasma environment. We started with orbits of photons around black hole in S-GUP.
Husanboy Hoshimov +4 more
semanticscholar +1 more source
Shadow revisiting and weak gravitational lensing with Chern-Simons modification [PDF]
Physics Letters B, 2023 Dynamical Chern-Simons (dCS) gravity has been attracting plenty of attentions due to the fact that it is a parity-violating modified theory of gravity that corresponds to a well-posed effective field theory in weak coupling approximation.
Y. Meng +3 more
semanticscholar +1 more source
Detection of the significant impact of source clustering on higher-order statistics with DES Year 3 weak gravitational lensing data [PDF]
Monthly Notices of the Royal Astronomical Society Letters, 2023 We measure the impact of source galaxy clustering on higher-order summary statistics of weak gravitational lensing data. By comparing simulated data with galaxies that either trace or do not trace the underlying density field, we show this effect can ...
M. Gatti +100 more
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