Results 141 to 150 of about 34,517 (164)

Real-time creation of curved space-time for gravitational lensing in phononic crystals

Metamaterials, 2023
We propose a method to generate an artificial curved space-time metric that mimics the metric at the vicinity of a black hole. This metric supports the gravitational lensing phenomenon, describing the deflection of light beams around the event horizon ...
S. Jana, L. Sirota
semanticscholar   +1 more source

Shadow and gravitational weak lensing around a quantum-corrected black hole surrounded by plasma

Chinese Physics C, High Energy Physics & Nuclear Physics
In this study, we investigate the optical properties of a quantum-corrected black hole (BH) in loop quantum gravity surrounded by a plasma medium. First, we determine the photon and shadow radii resulting from quantum corrections and the plasma medium in
Mirzabek Alloqulov, Yoqubjon Isaqjonov, Sanjar Shaymatov, A. Jawad   +3 more
semanticscholar   +1 more source

The influence of uniform magnetic fields on strong field gravitational lensing by Kerr black holes

Journal of Cosmology and Astroparticle Physics
We examine gravitational lensing strong deflection limit (SDL) by magnetized Kerr black holes (MKBHs), which are accurate Kerr-Bertotti-Robinson solutions for Kerr black holes in a uniform magnetic field with additional magnetic field strength B apart ...
Amnish Vachher, Arunav Kumar, Sushant G. Ghosh   +2 more
semanticscholar   +1 more source

A novel inversion algorithm for weak gravitational lensing using quasi-conformal geometry

The challenge in weak gravitational lensing caused by galaxies and clusters is to infer the projected mass density distribution from gravitational lensing measurements, known as the inversion problem.
Jan Jakob, Bjorn Malte Schafer
semanticscholar   +1 more source

Diffraction around caustics in gravitational wave lensing

Gravitational lensing magnification is maximal around caustics. At these source locations, an incoming wave from a point source would formally experience an infinite amplification in the high-frequency or geometric optics limit.
J. Ezquiaga, R. K. Lo, L. Vujeva
semanticscholar   +1 more source

Challenges and opportunities of gravitational-wave searches at MHz to GHz frequencies

Living Reviews in Relativity, 2021
Odylio D Aguiar, Giancarlo Cella, Valerie Domcke   +2 more
exaly  

Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA

Living Reviews in Relativity, 2020
K g Arun, R Birney, M W Coughlin
exaly  

Searches for continuous-wave gravitational radiation

Living Reviews in Relativity, 2023
Keith Riles
exaly  

Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA

Living Reviews in Relativity, 2018
K g Arun, R Birney, M W Coughlin
exaly  

Array programming with NumPy

Nature, 2020
K Jarrod Millman, Stéfan J Van Der Walt, Ralf Gommers   +2 more
exaly