No evidence for the cold spot in the NVSS radio survey

Details No evidence for the cold spot in the NVSS radio survey No evidence for the cold spot in the NVSS radio survey

2008-05-18

arxiv.org/abs/0805.2751v2

Mon.Not.Roy.Astron.Soc. 403:2,2010

Astronomy and Astrophysics

Astrophysics

v2: minor changes matching published version

Scientific paper

10.1111/j.1365-2966.2009.15732.x

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.

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