Gravitational lensing by a quantum deformed Schwarzschild black hole
The European Physical Journal C, 2021 We investigate the weak and strong deflection gravitational lensing by a quantum deformed Schwarzschild black hole and find their observables. These lensing observables are evaluated and the detectability of the quantum deformation is assessed, after ...
Xu Lu, Yi Xie
semanticscholar +1 more source
Probing Dark Low-mass Halos and Primordial Black Holes with Frequency-dependent Gravitational Lensing Dispersions of Gravitational Waves [PDF]
Astrophysical Journal, 2020 We explore the possibility of using amplitude and phase fluctuations of gravitational waves due to gravitational lensing as a probe of the small-scale matter power spectrum. The direct measurement of the small-scale matter power spectrum is made possible
M. Oguri, R. Takahashi
semanticscholar +1 more source
Determination of Lens Mass Density Profile from Strongly Lensed Gravitational-wave Signals
The Astrophysical Journal, 2023 As the interferometers detecting gravitational waves are upgraded, improving their sensitivity, the probability of observing strong lensing increases. Once a detection is made, it will be critical to gain as much information as possible about the lensing
Mick Wright +2 more
doaj +1 more source
Gravitational Lensing of Supernova Neutrino Bursts
Universe, 2021 Supernova neutrino bursts have been observed from extragalactic distances. This note addresses the question of how gravitational lensing could distort the information in the burst.
John M. LoSecco
doaj +1 more source
Gravitational lensing in the Simpson-Visser black-bounce spacetime in a strong deflection limit [PDF]
Physical Review D, 2020 A Simpson-Visser spacetime has two non-negative parameters $a$ and $m$ and its metric is correspond with (i) a Schwarzschild metric for $a=0$ and $m\ensuremath{\ne}0$, (ii) a regular black hole metric for $al2m$, (iii) a one-way traversable wormhole ...
N. Tsukamoto
semanticscholar +1 more source
Astrophysics and Space Science, 2001 AbstractIn the roughly 20 years of its existence as an observational science, gravitational lensing has established itself as a valuable tool in many astrophysical fields. In the introduction of this review we briefly present the basics of lensing. Then it is shown that the two propagation effects, lensing and scintillation, have a number of properties
openaire +2 more sources
Strong gravitational lensing of a 4-dimensional Einstein–Gauss–Bonnet black hole in homogeneous plasma [PDF]
International Journal of Modern Physics D, 2020 We investigate the strong gravitational lensing of spherically symmetric black holes in the novel Einstein–Gauss–Bonnet (EGB) gravity surrounded by unmagnetized plasma medium.
Xing-hua Jin, Yuan Gao, Dao-Jun Liu
semanticscholar +1 more source
Toward an Optimal Reconstruction of the Shear Field with PDF-folding
The Astrophysical Journal, 2023 Weak lensing provides a direct way of mapping the density distribution in the Universe. To reconstruct the density field from the shear catalog, an important step is to build the shear field from the shear catalog, which can be quite nontrivial due to ...
Haoran Wang +3 more
doaj +1 more source
Gravitational Lensing Effect on Cosmic Microwave Background Anisotropies: A Power Spectrum Approach [PDF]
, 1996 The effect of gravitational lensing on cosmic microwave background (CMB) anisotropies is investigated using the power spectrum approach. The lensing effect can be calculated in any cosmological model by specifying the evolution of gravitational potential.
Uroš Seljak
openalex +3 more sources
What does strong gravitational lensing? The mass and redshift distribution of high-magnification lenses [PDF]
Monthly notices of the Royal Astronomical Society, 2020 Many distant objects can only be detected, or become more scientifically valuable, if they have been highly magnified by strong gravitational lensing.
A. Robertson +6 more
semanticscholar +1 more source