Results 1 to 10 of about 585 (219)

The gravitational bending of acoustic Schwarzschild black hole [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Acoustic black hole is becoming an attractive topic in recent years, for it open-up new direction for experimental/observational explorations of black holes.
Chen-Kai Qiao, Mi Zhou
doaj   +2 more sources

Weak gravitational lensing [PDF]

open access: yesPhysics Reports, 2001
Review; 223 pages; figures embedded; to be submitted to Physics Reports; constructive comments are ...
Matthias Bartelmann, Peter Schneider
exaly   +4 more sources

Peaks in weak lensing mass maps for cluster astrophysics and cosmology [PDF]

open access: yesProceedings of the Japan Academy. Series B, Physical and Biological Sciences
Clusters of galaxies can be identified from the peaks in weak lensing aperture mass maps constructed from weak lensing shear catalogs. Such purely gravitational cluster selection differs considerably from traditional cluster selection based on the ...
Masamune OGURI, Satoshi MIYAZAKI
doaj   +2 more sources

Weak gravitational lensing by voids [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
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 and cosmic variance are the main factors which limit in principle the detection of lensing by voids.
Luca Amendola   +2 more
exaly   +3 more sources

Weak gravitational lensing of the CMB [PDF]

open access: yesPhysics 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   +2 more
exaly   +3 more sources

Baryons, neutrinos, feedback and weak gravitational lensing [PDF]

open access: yesMonthly 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   +4 more sources

Weak Gravitational Lensing and Its Cosmological Applications [PDF]

open access: yesAnnual 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
exaly   +3 more sources

Current status of weak gravitational lensing

open access: yesNew 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
Henk Hoekstra
exaly   +3 more sources

Geometric Outlines of the Gravitational Lensing and Its Astronomic Applications

open access: yesUniverse, 2023
Gravitational lensing is a topic of great application value in the field of astronomy. The properties and research methods of gravitational lensing are closely related to the geometric and relativistic characteristics of the background universe.
Bin Shen, Mingyang Yu
doaj   +1 more source

Gravitational Lensing of Acoustic Charged Black Holes

open access: yesThe Astrophysical Journal, 2023
We study the gravitational lensing of acoustic charged black holes in strong and weak field limit approximations. For this purpose, we first numerically obtain the deflection limit coefficients and deflection angle in the strong field limit.
Niyaz Uddin Molla, Ujjal Debnath
doaj   +1 more source

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