Can a supervoid explain the cold spot

@article{Nadathur2014CanAS,
  title={Can a supervoid explain the cold spot},
  author={Seshadri Nadathur and Mikko Lavinto and Shaun Hotchkiss and Syksy Rasanen},
  journal={Physical Review D},
  year={2014},
  volume={90},
  pages={103510}
}
The discovery of a void of size $\sim200\;h^{-1}$Mpc and average density contrast of $\sim-0.1$ aligned with the Cold Spot direction has been recently reported. It has been argued that, although the first-order integrated Sachs-Wolfe (ISW) effect of such a void on the CMB is small, the second-order Rees-Sciama (RS) contribution exceeds this by an order of magnitude and can entirely explain the observed Cold Spot temperature profile. In this paper we examine this surprising claim using both an… 

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