Results 21 to 30 of about 786,932 (316)

Beyond the Detector Horizon: Forecasting Gravitational-Wave Strong Lensing [PDF]

open access: yesAstrophysical Journal, 2021
When gravitational waves pass near massive astrophysical objects, they can be gravitationally lensed. The lensing can split them into multiple wave fronts, magnify them, or imprint beating patterns on the waves.
A. Wierda   +4 more
semanticscholar   +1 more source

Probing Dark Low-mass Halos and Primordial Black Holes with Frequency-dependent Gravitational Lensing Dispersions of Gravitational Waves [PDF]

open access: yesAstrophysical 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

Detecting and Characterizing Young Quasars. III. The Impact of Gravitational Lensing Magnification

open access: yesThe Astrophysical Journal, 2023
We test the impact of gravitational lensing on the lifetime estimates of seven high-redshift quasars at redshift z ≳ 6. The targeted quasars are identified by their small observed proximity zone sizes, which indicate extremely short quasar lifetimes ( t ...
Minghao Yue   +10 more
doaj   +1 more source

Gravitational lensing by a quantum deformed Schwarzschild black hole

open access: yesThe 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

Strong gravitational lensing of a 4-dimensional Einstein–Gauss–Bonnet black hole in homogeneous plasma [PDF]

open access: yesInternational 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

Gravitational lensing in the Simpson-Visser black-bounce spacetime in a strong deflection limit [PDF]

open access: yesPhysical 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

Weak gravitational lensing [PDF]

open access: yesPhysics Reports, 2001
Invited and refereed contribution to ...
Matteo Maturi, Matthias Bartelmann
openaire   +5 more sources

Gravitational Lensing of Supernova Neutrino Bursts

open access: yesUniverse, 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

What does strong gravitational lensing? The mass and redshift distribution of high-magnification lenses [PDF]

open access: yesMonthly 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

Gravitational Lensing [PDF]

open access: yesAstrophysics 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

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