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This article is an erratum for:

Volume 652, August 2021
Article Number C1
Number of page(s) 1
Section Extragalactic astronomy
Published online 30 July 2021

This is a corrigendum for Sarkar & Jog (2019). A negative sign was inadvertently placed in front of the surface brightness values plotted along the Y-axis in Figs. 9–11. The actual values of surface brightness calculated using Eq. (10) of the paper are positive, and hence the intensity falls at high z, as expected physically. There is no change in the results or conclusions of the paper.

We thank Dmitry Bizyaev for drawing our attention to this mistake.


  1. Sarkar, S., & Jog, C. J. 2019, A&A, 628, A58 [CrossRef] [EDP Sciences] [Google Scholar]

© ESO 2021

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