出典:Wiktionary
出典:『Wiktionary』 (2025/11/30 21:35 UTC 版)
Einstein radius (plural Einstein radiuses or Einstein radii)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/20 13:04 UTC 版)
The Einstein radius is the radius of an Einstein ring, and is a characteristic angle for gravitational lensing in general, as typical distances between images in gravitational lensing are of the order of the Einstein radius.