Weak gravitational lensing by Bocharova–Bronnikov–Melnikov–Bekenstein black holes using Gauss–Bonnet theorem [PDF]
The European Physical Journal Plus, 2020 In this article, we demonstrate the weak gravitational lensing in the context of Bocharova–Bronnikov–Melnikov–Bekenstein (BBMB) black hole. To this desire, we derive the deflection angle of light in a plasma medium by BBMB black hole using the Gibbons ...
Wajiha Javed +2 more
openalex +3 more sources
Shadows and gravitational weak lensing by the Schwarzschild black hole in the string cloud background with quintessential field* [PDF]
Chinese Physics C, High Energy Physics & Nuclear Physics, 2022 In this study, we observe that, in the presence of the string cloud parameter a and the quintessence parameter γ, with the equation of state parameter , the radius of the shadow of the Schwarzschild black hole increases as compared with that in the pure ...
Ghulam Mustafa +4 more
openalex +3 more sources
The imprint of $f(R)$ gravity on weak gravitational lensing I: Connection between observables and large scale structure [PDF]
, 2016 We study the effect of $f(R)$ gravity on the statistical properties of various large-scale structures which can be probed in weak gravitational lensing measurements.
Higuchi, Yuichi, Shirasaki, Masato
core +2 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
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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
semanticscholar +1 more source
Weak gravitational lensing in dark matter and plasma mediums for wormhole-like static aether solution [PDF]
The European Physical Journal C, 2022 In this paper, we study the deflection angle for wormhole-like static aether solution by using Gibbons and Werner technique in non-plasma, plasma, and dark matter mediums.
W. Javed +3 more
semanticscholar +1 more source
Geometric Outlines of the Gravitational Lensing and Its Astronomic Applications
Universe, 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
KiDS-1000 Cosmology: Multi-probe weak gravitational lensing and spectroscopic galaxy clustering constraints [PDF]
Astronomy & Astrophysics, 2020 We present a joint cosmological analysis of weak gravitational lensing observations from the Kilo-Degree Survey (KiDS-1000), with redshift-space galaxy clustering observations from the Baryon Oscillation Spectroscopic Survey (BOSS) and galaxy-galaxy ...
C. Heymans +30 more
semanticscholar +1 more source
Charged black hole in 4D Einstein-Gauss-Bonnet gravity: particle motion, plasma effect on weak gravitational lensing and centre-of-mass energy [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 We study the motion of charged and spinning particles and photons in the 4D charged Einstein-Gauss-Bonnet (EGB) black hole vicinity. We determine the radius of the innermost stable circular orbit (ISCO) for test particles.
Farruh Atamurotov +3 more
semanticscholar +1 more source
Gravitational Lensing of Acoustic Charged Black Holes
The 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