Difference between revisions of "Gravitational Lensing"

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Questions in this category have been asked by PJ, MT
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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?
 
*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)
 
**What is the deflection of light by sun using newtonian mechanics? (calculate it, do the integral)
 
**Compare it with the GR result
 
**Compare it with the GR result
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 +
*What kind of objects can cause gravitational lensing?
 +
**what's the smallest thing we know that cause lensing?

Revision as of 22:47, 11 December 2007

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 cause lensing?