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Red/ blue shift do to gravity

  1. Jul 26, 2011 #1


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    Can anyone supply me with the mathematics behind the energy gain/ loss as a photon travels through a gravitational potential difference?
  2. jcsd
  3. Jul 27, 2011 #2
    Good old WP is probably a good place to go at least for starters - http://en.wikipedia.org/wiki/Gravitational_redshift
    Note the alternate viewpoint in terms of differing clock rates rather than energy gain/loss in the section "Gravitational redshift versus gravitational time dilation"
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