How is the first multipole calculated from the Plank Study?

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SUMMARY

The first multipole from the Planck 2013 Results is calculated using the angular scale of 0.0104147 radians, which corresponds to an angle of 0.60 degrees. The Power Spectrum chart indicates the first multipole at l = 220. The relationship used for this calculation is θ = 180°/l, leading to a peak at l = 302 when considering the angular scale. It is crucial to note that the graph displays power multiplied by l(l+1), which may represent a different l-dependent prefactor affecting the interpretation of the angular scale.

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Jules Winnfield
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Reading through the Plank 2013 Results we can see that the angular scale is ##0.0104147## or ##0.60^\circ##. However, the Power Spectrum chart clearly shows the first multipole at ##220## ##l##. Using the relation $$\theta = \frac {180^\circ}{l},$$I calculate the first multipole to peak at ##302## ##l##. Would someone please show the steps of how you go from ##0.0104147## to ##220## ##l##?
 
Be careful with the graph. It does not show the power, it shows the power multiplied by l(l+1). The calculation of the angular scale might measure the peak of something else, i. e. with a different l-dependent prefactor.
 

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