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Erratum
This article is an erratum for:
[https://doi.org/10.1051/0004-6361/202243074]

Issue
A&A
Volume 669, January 2023
Article Number C2
Number of page(s) 1
Section Cosmology (including clusters of galaxies)
DOI https://doi.org/10.1051/0004-6361/202243074e
Published online 12 January 2023

Erratum for: A&A, 665, A24 (2022), https://doi.org/10.1051/0004-6361/202243074

There were errors in two of the equations in our original publication (Pratt et al. 2022). The first error appears in Eq. (3), where the quantity in question should be 500 times the critical density of the Universe, and so it becomes

ρ 500 = 500 ρ c ( z ) = 4.603 × 10 − 27 E ( z ) 2 g cm − 3 . $$ \begin{aligned} \rho _{\rm 500} = 500\, \rho _{\rm c}(z) = 4.603 \times 10^{-27}\, E(z)^2\ \mathrm{g \ cm^{-3}}. \end{aligned} $$(1)

The second error appears in Eq. (18), where the numerical factor for the normalisation, f0, should have been

f 0 = 1.20 ± 0.15 . $$ \begin{aligned} f_0 = 1.20 \pm 0.15. \end{aligned} $$(2)

The gas mass fraction corresponding to this value of the normalisation is then fgas = 0.13 ± 0.01.

As a consequence of the above-mentioned points, the normalisation of the plots in Fig. 4 of Pratt et al. (2022) was also incorrect. The plots with the correct normalisation are shownbelow.

thumbnail Fig. 1.

Universal cluster ICM density profile. Left: Scaled density profiles of the SZE-selected clusters (grey points), overplotted with the best-fitting GNFW model with free evolution and mass dependence: ρgas/ρ500(R/R500)∝E(z)αz MαM with αz = 2.09 ± 0.02 and αM = 0.22 ± 0.01 (orange line). The model includes a radially varying intrinsic scatter term (orange envelope). Right: Comparison of the best-fitting model, defined on the SZE-selected sample, to the best-fitting model for the X-ray-selected REXCESS sample (light blue). Here, the points with error bars are the REXCESS sample.

Acknowledgments

We thank S. Andreon for notifying us of the errors in the original article.

References

  1. Pratt, G. W., Arnaud, M., Maughan, B. J., & Melin, J. B. 2022, A&A, 665, A24 [NASA ADS] [CrossRef] [EDP Sciences] [Google Scholar]

© The Authors 2023

Licence Creative CommonsOpen Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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All Figures

thumbnail Fig. 1.

Universal cluster ICM density profile. Left: Scaled density profiles of the SZE-selected clusters (grey points), overplotted with the best-fitting GNFW model with free evolution and mass dependence: ρgas/ρ500(R/R500)∝E(z)αz MαM with αz = 2.09 ± 0.02 and αM = 0.22 ± 0.01 (orange line). The model includes a radially varying intrinsic scatter term (orange envelope). Right: Comparison of the best-fitting model, defined on the SZE-selected sample, to the best-fitting model for the X-ray-selected REXCESS sample (light blue). Here, the points with error bars are the REXCESS sample.
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