How Many Einstein Rings Have Been Discovered?

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SUMMARY

As of now, several hundred candidate Einstein rings, which are galaxies lensed by gravity, have been identified. The Optical Gravitational Lensing Experiment (OGLE) has catalogued the majority of these candidate events. Gravitational lensing remains a relatively rare phenomenon, yet the number of identified instances continues to grow. For detailed information, refer to the OGLE project website at http://ogle.astrouw.edu.pl/.

PREREQUISITES
  • Understanding of gravitational lensing concepts
  • Familiarity with astronomical survey methodologies
  • Knowledge of the Optical Gravitational Lensing Experiment (OGLE)
  • Basic principles of astrophysics
NEXT STEPS
  • Research the latest findings from the OGLE project
  • Explore gravitational lensing techniques in astrophysics
  • Learn about the implications of gravitational lensing on cosmology
  • Investigate other astronomical surveys that identify lensing events
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Astronomers, astrophysics students, and researchers interested in gravitational lensing and galaxy formation will benefit from this discussion.

wolram
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How many Einstein rings have been found to date, i mean galaxies lensed by gravity?
 
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wolram said:
How many Einstein rings have been found to date, i mean galaxies lensed by gravity?
So many, I think, that I seriously doubt anyone has bothered to count them.
 
Gravitational lensing is a relatively rare phenomenon, but, several hundred candidate lensing events have been identified to date. The OGLE [Optical Gravitational Lensing Experiment] project has probably catalogued the majority of candidate events identified to date. See http://ogle.astrouw.edu.pl/ for further details.
 

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