Results 91 to 100 of about 68,770 (225)
Particle dynamics and gravitational weak lensing around black hole in the Kalb-Ramond gravity
The European Physical Journal C, 2022 In this paper, we have studied the particle dynamics, gravitational lensing and energy processes around the black hole (BH) in Kalb–Ramond (KR) gravity.
Farruh Atamurotov +3 more
semanticscholar +1 more source
INTRINSIC GALAXY ALIGNMENTS AND WEAK GRAVITATIONAL LENSING [PDF]
The Shapes of Galaxies and Their Dark Halos, 2002 8 pages.
openaire +2 more sources
Mapping dark matter on the celestial sphere with weak gravitational lensing [PDF]
, 2017 Convergence maps of the integrated matter distribution are a key science result from weak gravitational lensing surveys. To date, recovering convergence maps has been performed using a planar approximation of the celestial sphere.
C. Wallis +5 more
semanticscholar +1 more source
Probing a regular non-minimal Einstein-Yang-Mills black hole with gravitational lensings
Physics Letters B, 2019 We investigate weak and strong deflection gravitational lensings of the regular black hole predicted by a non-minimal Einstein–Yang–Mills theory. We find that its weak deflection lensing is the same as a Reissner–Nordström black hole's.
Feng-Yuan Liu +3 more
doaj +1 more source
GLASS: Generator for Large Scale Structure
The Open Journal of Astrophysics, 2023 We present GLASS, the Generator for Large Scale Structure, a new code for the simulation of galaxy surveys for cosmology, which iteratively builds a light cone with matter, galaxies, and weak gravitational lensing signals as a sequence of nested shells ...
Nicolas Tessore +4 more
doaj +1 more source
KiDS-i-800: Comparing weak gravitational lensing measurements from same-sky surveys [PDF]
, 2017 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 +24 more
semanticscholar +1 more source
The Open Journal of AstrophysicsThe apparent angular positions of quasars are deflected on the sky by the gravitational field sourced by foreground matter. This weak lensing effect is measurable through the distortions it introduces in the lensed quasar spectra.
Patrick Shaw +2 more
doaj +1 more source
Poisson equation for weak gravitational lensing [PDF]
Physical Review D, 2008 accepted to Phys.
Kling, Thomas P., Campbell, B.
openaire +2 more sources
A deconstruction of methods to derive one-point lensing statistics
The Open Journal of AstrophysicsGravitational lensing is a crucial tool for exploring cosmic phenomena, providing insights into galaxy clustering, dark matter, and dark energy. Given the substantial computational demands of $N$-body simulations, approximate methods like $\texttt ...
Viviane Alfradique +5 more
doaj +1 more source
Weak lensing of large scale structure in the presence of screening
, 2015 A number of alternatives to general relativity exhibit gravitational screening in the non-linear regime of structure formation. We describe a set of algorithms that can produce weak lensing maps of large scale structure in such theories and can be used ...
Ferreira, Pedro G. +4 more
core +3 more sources