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Cold Spot

(CMB Cold Spot, WMAP Cold Spot)
(unusually colder spot in the CMB)

A Cold Spot (or Cosmic Microwave Background Cold Spot or WMAP Cold Spot) is an area where the CMB indicates a slightly lower Black Body Temperature than expected, a difference on the order of 70 millionths of a Kelvin degree. The CMB black body temperature has a random distribution around a value near 2.7K except for these areas. Some research has suggested they correspond to Voids.


(CMB)
http://en.wikipedia.org/wiki/CMB_cold_spot
https://ned.ipac.caltech.edu/level5/March03/Lineweaver/Lineweaver7_6.html
https://arxiv.org/abs/1704.03814

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