Results 11 to 20 of about 68,770 (225)
Weak gravitational lensing with DEIMOS [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 We introduce a novel method for weak-lensing measurements, which is based on a mathematically exact deconvolution of the moments of the apparent brightness distribution of galaxies from the telescope's PSF.
Amara +20 more
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Weak gravitational lensing [PDF]
Physics Reports, 2001 Review; 223 pages; figures embedded; to be submitted to Physics Reports; constructive comments are ...
Bartelmann, M., Schneider, P.
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Weak Gravitational Lensing by Voids [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 We consider the prospects for detecting weak gravitational lensing by underdensities (voids) in the large-scale matter distribution. We derive the basic expressions for magnification and distortion by spherical voids. Clustering of the background sources
Amendola, Luca +2 more
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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.
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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.
Lewis, Antony, Challinor, Anthony
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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
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.
J. Harnois-Deraps +3 more
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Current status of weak gravitational lensing
New Astronomy Reviews, 2002 Weak gravitational lensing of distant galaxies by foreground structures has proven to be a powerful tool to study the mass distribution in the universe. Nowadays, attention has shifted from clusters of galaxies to the statistical properties of the large scale structures and the halos of (field) galaxies. These applications have become feasible with the
Hoekstra, Henk +2 more
openaire +4 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.
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Weak gravitational lensing and shadow cast by rotating black holes in axionic Chern–Simons theory [PDF]
Physics of the Dark Universe, 2023 We investigate the impact of the axionic coupling parameter on the bending angle of light and the shadow cast by slowly rotating black holes in Chern-Simons modified gravity.
N. Parbin +2 more
semanticscholar +1 more source