Einstein ring

English right|thumb|A partial Einstein ring Etymology Named after Albert Einstein, whose theory of general relativity predicted gravitational lensing. Noun en astronomy A ring-shaped gravitational mirage; an image of a distant light source, such as a galaxy, which has been distorted into a ring by a gravitational lens. en 2008 Malcolm Longair Galaxy Formation 2nd https://books.google.com.au/books?id=e-wJHSBOuZAC&pg=PA130&dq=%22Einstein+ring%22%7C%22Einstein+rings%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjUxPOAu7z9AhW7R0EAHXmDCIkQ6AF6BAgNEAI#v=onepage&q=%22Einstein%20ring%22%7C%22Einstein%20rings%22&f=false 130 Springer Thus, clusters of galaxies with masses M ∼ 1015M⊙ at cosmological distances can result in Einstein rings with angular radii tens of arcseconds. en 2012 Arlie O. Petters; Harold Levine; Joachim Wambsganss Singularity Theory and Gravitational Lensing https://books.google.com.au/books?id=i1vdBwAAQBAJ&pg=PA155&dq=%22Einstein+ring%22%7C%22Einstein+rings%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjUxPOAu7z9AhW7R0EAHXmDCIkQ6AF6BAhlEAI#v=onepage&q=%22Einstein%20ring%22%7C%22Einstein%20rings%22&f=false 155 Springer The many constraints that the images of Einstein rings provide, allow us to determine the slope of the mass distribution in the lensing galaxy.In 1988, the first example of an "Einstein ring" was discovered by Jackie Hewitt [Hew]. en 2017 Scott Dodelson Gravitational Lensing https://books.google.com.au/books?id=CIThDgAAQBAJ&pg=PA48&dq=%22Einstein+ring%22%7C%22Einstein+rings%22&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjUxPOAu7z9AhW7R0EAHXmDCIkQ6AF6BAhZEAI#v=onepage&q=%22Einstein%20ring%22%7C%22Einstein%20rings%22&f=false 48 w:Cambridge University Press This is quite a bit larger than the cores in most clusters, so clusters are unlikely to produce dramatic signatures such as Einstein rings. Related terms en Einstein cross Einstein radius Translations image distorted into a ring by a gravitational lens French: fr anneau d'Einstein m German: de Einsteinring m Italian: it anello di Einstein m Polish: pl pierścień Einsteina m Portuguese: pt anel de Einstein m Further reading Anagrams en eegiiinnnrst niningerites en eponyms en Relativity