No evidence for the cold spot in the NVSS radio survey

Understand

We revisit recent claims that there is a "cold spot" in both number counts and brightness of radio sources in the NVSS survey, with location coincident with the previously detected cold spot in WMAP.

• Such matching cold spots would be difficult if not impossible to explain in the standard LCDM cosmological model.
• Contrary to the claim, we find no significant evidence for the radio cold spot, after including systematic effects in NVSS, and carefully accounting for the effect of a posteriori choices when assessing statistical significance.