Results 251 to 260 of about 64,072 (295)

Automation of finding strong gravitational lenses in the Kilo Degree Survey with U - DenseLens (DenseLens  + Segmentation). [PDF]

open access: yesMon Not R Astron Soc
N BC   +9 more
europepmc   +1 more source

The Analytical research of images in the gravitational lens

open access: yesVìsnik Harkìvsʹkogo nacìonalʹnogo unìversitetu ìmenì V.N. Karazìna. Serìâ: fìzika., 2019
Semen Bronza, Albert Kotvytskiy
doaj  

Gravitational Lens Optics

Science, 1989
Several instances of multiple imaging of cosmologically distant sources by intervening galaxies and galaxy clusters have been discovered over the past decade. These "gravitational lenses" have distinctive optical properties. Pointlike sources such as quasars generally produce two or four images when lensed, whereas extended sources such as galaxies ...
Blandford, R. D.   +3 more
openaire   +3 more sources

GRAVITATIONAL LENS AMPLIFICATION OF GRAVITATIONAL RADIATION

International Journal of Modern Physics D, 2002
In a recent paper by Wang, Turner and Stebbins (1996) an influence of gravitational lensing on increasing an estimated rate of gravitational radiation sources was considered. We show that the authors used the geometrical optics approximation model for gravitational lensing and thus they gave overestimated rate of possible events for possible sources ...
ALEXANDER F. ZAKHAROV, YURI V. BARYSHEV
openaire   +1 more source

Gravitational lens

American Journal of Physics, 1981
A plastic lens is described which will bend light rays parallel to the lens axis in the same way as a static (Schwarzschild) gravitational field. This allows one to observe the optical distortions caused by a (nonrotating) black hole directly. The double-imaging property is discussed with particular application to the recently announced double quasar ...
openaire   +3 more sources

Mirages Caused by a Gravitational Lens

1987
Unlike most of the important discoveries reported in astronomy, the physics of gravitational lenses was understood well before their existence was proven. In 1936, Albert Einstein published the results of some calculations concerning the lens effects caused by the gravitational field of a star — the lens — on the light emitted by another star — the ...
openaire   +2 more sources

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