Galaxies Rotate Fast: Gravitational Lens Effect

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SUMMARY

Galaxies appear to rotate faster than expected due to the gravitational lensing effect, which makes them appear larger than their actual size. This hypothesis challenges the conventional understanding of galaxy rotation curves and suggests that the perceived rotation speed may not necessarily indicate the presence of dark matter. The discussion references the Wikipedia page on galaxy rotation curves, highlighting the significance of this observation in astrophysics.

PREREQUISITES
  • Understanding of gravitational lensing
  • Familiarity with galaxy rotation curves
  • Basic knowledge of dark matter theories
  • Awareness of astrophysical observational techniques
NEXT STEPS
  • Research the implications of gravitational lensing on galaxy observations
  • Explore the concept of dark matter and its alternatives
  • Study the mathematical models of galaxy rotation curves
  • Investigate recent studies on galaxy dynamics and their rotation speeds
USEFUL FOR

Astronomers, astrophysicists, and students interested in galaxy dynamics and the implications of gravitational lensing on our understanding of the universe.

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Hypothesis: Galaxies appear to rotate too fast because their own gravitational lens let's them appear bigger than they really are.
Just an idea, do you think it could work ?
 
Last edited:
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How fast should a galaxy rotate?
 

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