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Published in 2021 at "Annals of Physics"
DOI: 10.1016/j.aop.2021.168460
Abstract: Abstract The present paper is intended for studying the effect of strong gravitational lensing in the context of charged wormhole. To study this effect, the conditions determining the existence of photon spheres at and outside…
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Keywords:
photon spheres;
effect;
lensing effect;
gravitational lensing ... See more keywords
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Published in 2020 at "Chinese Journal of Physics"
DOI: 10.1016/j.cjph.2020.09.037
Abstract: Abstract Here we consider accelerating and rotating charged Plebanski-Demianski (PD) class of black hole metric as a particle accelerator. We obtain the geodesic motions (timelike, null and spacelike) of particles in a non-equatorial plane around…
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Keywords:
plebanski demianski;
black hole;
hole;
hole shadow ... See more keywords
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Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202037929
Abstract: The dynamical modelling of integral field unit (IFU) stellar kinematics is a powerful tool to unveil the dynamical structure and mass build-up of galaxies in the local Universe, while gravitational lensing is nature’s cosmic telescope…
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Keywords:
high redshift;
mass;
redshift galaxies;
properties high ... See more keywords
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Published in 2017 at "Contemporary Physics"
DOI: 10.1080/00107514.2017.1371230
Abstract: That light can be deflected by gravity is one of the most fundamental phenomena in nature. Gravitational lensing, as it is called, is one of the celebrated outcomes of relativity that readers almos...
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Keywords:
gravitational lensing;
lensing dodelson;
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Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/03/095
Abstract: We present an algorithm to self-consistently generate mock weak gravitational lensing convergence fields and galaxy distributions in redshift space. We generate three-dimensional cosmic density fields that follow a log-normal distribution, and ray-trace them to produce…
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Keywords:
ray tracing;
log normal;
cross;
cross correlation ... See more keywords
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Published in 2023 at "Chinese Physics C"
DOI: 10.1088/1674-1137/acd83e
Abstract: In the electromagnetic channel, chaotic gravitational lensing is a peculiar phenomenon in strong gravitational lensing. In this work, we analyze the properties and emergence of chaotic gravitational lensing in the Manko-Novikov black hole spacetime. Aiming…
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Keywords:
physics;
chaotic gravitational;
onset chaotic;
lensing non ... See more keywords
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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1429
Abstract: Many distant objects can only be detected, or become more scientifically valuable, if they have been highly magnified by strong gravitational lensing. We use eagle and bahamas, two recent cosmological hydrodynamical simulations, to predict the…
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Keywords:
gravitational lensing;
lensing;
strong gravitational;
magnification ... See more keywords
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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab577
Abstract: In a recent paper, we have discussed the higher order singularities in gravitational lensing. We have shown that a singularity map, comprising A3- lines and unstable (point) singularities (A4 and D4), is a compact representation…
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Keywords:
image formation;
gravitational lensing;
point;
point singularities ... See more keywords
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Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stw2840
Abstract: We study a class of gravitational lensing systems consisting of an inclined ring/belt, with and without an added point mass at the centre. We show that a common feature of such systems are so-called "pseudo-caustics",…
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Keywords:
pseudo caustics;
lensing ring;
like structures;
ring belt ... See more keywords
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Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1791
Abstract: In this work, by using strong gravitational lensing (SGL) observations along with Type Ia Supernovae (Union2.1) and gamma ray burst data (GRBs), we propose a new method to study a possible redshift evolution of $\gamma(z)$,…
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Keywords:
strong gravitational;
evolution;
mass density;
gamma gamma ... See more keywords
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Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty1161
Abstract: We measure the gravitational lensing signal around satellite galaxies in a sample of galaxy clusters at $z
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Keywords:
galaxy;
stellar mass;
mass;
galaxy clusters ... See more keywords