Chang–Refsdal lens
id:
chang-refsdal-lens-266-3281926
title:
Chang–Refsdal lens
text:
A Chang–Refsdal lens is a point-mass gravitational lens perturbed by constant external shear. The name derives from Kyongae Chang and Sjur Refsdal who in 1979 published a paper in NATURE 282, 561. "Flux Variations of QSO Q0957+561 A,B and image splitting by stars Near the Light Path."
The paper illustrated that stars could affect quasar image brightness.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Chang%E2%80%93Refsdal_lens
date created:
date modified:
2024-03-13T06:03:00Z
main entity:
{"identifier":"Q1061876","url":"https://www.wikidata.org/entity/Q1061876"}
image:
fields total:
13
integrity:
13