July 14th, 2019 - CIB Smoothing: Iterations

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Revision as of 22:31, 14 July 2019 by Jlee (talk | contribs)
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Yesterday, Pavel mentioned that it is odd that smoothing the CIB with 12" and 5" beams seems to have almost the same effects. Thus, I tried smoothing the two maps with different iterations (healpy.smoothing has a parameter called 'iter', where the number of iterations can be changed).

Histograms (Left: 12", Right: 5")

Iter 12s hist.png Iter 5s hist.png

It is hard to see any difference between the iter = 3 - smoothed maps and iter = 1 - smoothed maps.

Histogram Differences

I tried plotting the differences between the two histograms (iter = 3 - iter = 1)

12s dif hist.png 5s dif hist.png

Histogram Fractional Differences

Here are the fractional differences of the histograms.

12s fd.png 5s fd.png

Cartview

-12"

12s it3 cart.png 12s it1 cart.png

-5"

5s it3 cart.png 5s it1 cart.png