The hydrostatic-to-lensing mass bias from resolved X-ray and optical-IR data

Understand

An accurate reconstruction of galaxy cluster masses is key to use this population of objects as a cosmological probe.

• In this work we present a study on the hydrostatic-to-lensing mass scaling relation for a sample of 53 clusters whose masses were reconstructed homogeneously in a redshift range between $z= 0.05$ and $1.07$.
• The $M_{500}$ mass for each cluster was indeed inferred from the mass profiles extracted from the X-ray and lensing data, without using a priori observable-mass scaling relations.
• We assessed the systematic dispersion of the masses estimated with our reference analyses with respect to other published mass estimates.