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CMB polarization data plots, almost a vector field, then what?

  1. Mar 17, 2014 #1
    The data points of the polarization of the CMB are a magnitude and an orientation that varies between 0° and 180°. What kind of mathematical field is that, not quite a vector field?

    Thanks for any help!
  2. jcsd
  3. Mar 18, 2014 #2


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    This is how polarization on the sky is often defined mathematically:
  4. Mar 18, 2014 #3


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    And what are the red and blue colors in the plots?
  5. Mar 18, 2014 #4
    Temperature fluctuations?
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