Ionization by early quasars and Cosmic Microwave Background anisotropies. (Erratum)

TL;DR

This paper discusses the impact of early quasars on ionization and the resulting anisotropies in the Cosmic Microwave Background, clarifying a correction to a figure's data representation.

Contribution

It provides a corrected analysis of CMB anisotropies influenced by early quasars, ensuring accurate interpretation of the power spectrum.

Findings

Corrected the power amplitude values in figure 9 by dividing by 16

Confirmed that the correction does not alter the paper's conclusions

Clarified the impact of early quasars on CMB anisotropies

Abstract

The y axis of figure 9, which gives the power amplitude ($l(l+1)C_l$) in units of $10^{-12}$, is incorrectly reported. The correct values are obtained by dividing the amplitudes by 16. All the relative values remain valid, and this therefore does not change the conclusions of the paper.