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Extrasolar Planets

  1. Oct 22, 2008 #1
    I need some help getting started with a problem I have.
    A spectrograph records the Radial velocity of a star to find if it has a planet. It has an intrinsic systematic error of say [tex] 4ms^{-1}[/tex]. The error of experimentation such as 'stellar jitter' is added in quadrature to this systematic error. The data is fitted to a 7 parameter function through nonlinear regression. How will the error change on a single fitted parameter if the intrinsic systematic error of the equipment is reduced to say [tex] 1ms^{-1}[/tex]?
    Where do I begin to investigate this?
  2. jcsd
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