SIMBAD references

2016MNRAS.460L..15M - Mon. Not. R. Astron. Soc., 460, L15-L19 (2016/July-3)

On the void explanation of the Cold Spot.

MARCOS-CABALLERO A., FERNANDEZ-COBOS R., MARTINEZ-GONZALEZ E. and VIELVA P.

Abstract (from CDS):

The integrated Sachs-Wolfe (ISW) contribution induced on the cosmic microwave background by the presence of a supervoid as the one detected by Szapudi et al. (2015) is reviewed in this letter in order to check whether it could explain the Cold Spot (CS) anomaly. Two different models, previously used for the same purpose, are considered to describe the matter density profile of the void: a top hat function and a compensated profile produced by a Gaussian potential. The analysis shows that, even enabling ellipticity changes or different values for the dark-energy equation of state parameter ω, the ISW contribution due to the presence of the void does not reproduce the properties of the CS.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: data analysis - cosmic background radiation - cosmic background radiation

Simbad objects: 1

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