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Solar wind at jupiter

  1. Jan 13, 2009 #1
    1. The problem statement, all variables and given/known data

    I'm trying to solve a problem related to the solar wind pressure at jupiter but I'm stuck at calculating the density. It is stated that the solar wind has a density of 5 [itex]cm^{-3}[/tex] and a speed of 400 km/s at the orbit of the Earth, and that it should be assumed that it propagates with constant velocity. Is the density of the solar wind at jupiter just

    [tex]\rho_J = \rho_E \frac{S_E}{S_J}[/tex]

    where S is the surface area of a sphere centered on the Sun?
     
  2. jcsd
  3. Jan 13, 2009 #2
    Your approach appears correct. Since the source can be considered a point source, using spherical surface area ratios calculated from the mean orbit radii will provide the correct density.
     
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