Gravitational Lensing

Some articles on gravitational lensing, gravitational, lensing:

The Dark Energy Survey - Weak Lensing
... Gravitational lensing occurs when light from distant sources such as quasars or galaxies is bent by the gravitational field of a massive object ... This is referred to as strong gravitational lensing ... The cosmological gravitational field can also bend the light from distant sources but in this case the images of galaxies are distorted, stretched and magnified, in small amounts ...
Weak Gravitational Lensing - Methodology
... Gravitational lensing acts as a coordinate transformation that distorts the images of background objects (usually galaxies) near a foreground mass ... their measured ellipticity is a combination of their intrinsic ellipticity and the gravitational lensing shear ... any systematic alignment between multiple galaxies can generally be assumed to be caused by lensing ...
List Of Abell Clusters - 1-1999
... +37° 33′ 45″ 370 ... Cetus 02h 39m 50.5s -01° 35′ 08″ 0 II-III Exhibits gravitational lensing ... -01° 20′ 17″ 4 II-III One of the biggest and most massive galaxy clusters known exhibits gravitational lensing ... known galaxy, "Galaxy Abell 1835 IR1916", seen through gravitational lensing ...
Galaxy Rotation Curve - Alternatives To Dark Matter
... gravity (TeVeS) theory, enabling gravitational lensing to be covered by the theory ... rotation curve, but MOG predicts an eventual return to the familiar inverse-square gravitational force law ... not considered by the astronomical community to be as convincing as the dark matter model, gravitational lensing studies have been proposed as the means to separate the ...
Strong Gravitational Lensing
... Strong gravitational lensing is a gravitational lensing effect that is strong enough to produce multiple images, arcs, or even Einstein rings ... Generally, the strong lensing effect requires the projected lens mass density greater than the critical density ...