https://doi.org/10.1051/epjconf/202429300033
Estimation of the hydrostatic-to-lensing mass bias from resolved cluster masses
1 Univ. Grenoble Alpes, CNRS, LPSC-IN2P3, 53, avenue des Martyrs, 38000 Grenoble, France
2 Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM, 91191, Gif-sur-Yvette, France
3 Univ. de Toulouse, UPS-OMP, CNRS, IRAP, 31028 Toulouse, France
4 INAF, IASF-Milano, via A. Corti 12, I-20133 Milano, Italy
5 Dipartimento di Fisica, Sapienza Università di Roma, Piazzale Aldo Moro 5, I-00185 Roma, Italy
6 Instituto de Astrofísica de Canarias (IAC), C/Vía Láctea s/n, 38205 La Laguna, Tenerife, Spain
7 High Energy Physics Division, Argonne National Laboratory, Lemont, IL 60439, USA
8 Departamento de Física Teórica and CIAFF, Facultad de Ciencias, UAM, 28049 Madrid, Spain
9 Centro de Investigación Avanzada en Física Fundamental (CIAFF), UAM, 28049 Madrid, Spain
* e-mail: miren.munoz@lpsc.in2p3.fr
Published online: 28 March 2024
We present a study on the bias of hydrostatic masses with respect to lensing mass estimates for a sample of 53 clusters in a redshift range between z = 0.05 and 1.07. The M500 mass for each cluster was inferred from X-ray and lensing data, without using a priori observable-mass scaling relations. Cluster masses of our reference analysis were reconstructed homogeneously and we assess the systematic dispersion of those homogeneous masses with respect to other published mass estimates. We obtain an hydrostatic-to-lensing mass bias of (1 − b) = 0.74−0.07+0.08 and no significant evidence of evolution with redshift.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
