Concept information
Preferred term
gravitational lens
Definition(s)
- A concentration of matter, such as a galaxy or a cluster of galaxies, that bends light rays from a background object, resulting in production of multiple images. If the two objects and the Earth are perfectly aligned, the light from the distant object appears as a ring from Earth. This is called an Einstein Ring, since its existence was predicted by Einstein in his theory of general relativity. (An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri, https://dictionary.obspm.fr/index.php?formSearchTextfield=gravitational+lens&formSubmit=Search&showAll=1)
Broader concept(s)
Narrower concept(s)
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/MDL-ZT1PJXWS-H
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