Gravitational Lensing

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Revision as of 22:48, 11 December 2007 by 18.251.6.42 (Talk)

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Questions in this category have been asked by PJ, MT and SR

  • How can you use gravitational lensing to determine H0?
    • What is the deflection of light by sun using newtonian mechanics? (calculate it, do the integral)
    • Compare it with the GR result
  • What kind of objects can cause gravitational lensing?
    • what's the smallest thing we know that causes lensing?