# Follow-up of eROSITA and Euclid Galaxy Clusters with XMM-Newton

## TL;DR

This paper discusses how XMM-Newton will be crucial for detailed follow-up observations of galaxy clusters detected by upcoming eROSITA and Euclid surveys, enabling advanced scientific insights.

## Contribution

It highlights the role of XMM-Newton in exploiting new, high-quality galaxy cluster datasets from eROSITA and Euclid for detailed analysis.

## Key findings

- XMM-Newton will enable detailed hot gas studies of galaxy clusters.
- Follow-up observations will improve understanding of cluster sub-samples.
- The approach will facilitate discovery of exotic objects.

## Abstract

A revolution in galaxy cluster science is only a few years away. The survey machines eROSITA and Euclid will provide cluster samples of never-before-seen statistical quality. XMM-Newton will be the key instrument to exploit these rich datasets in terms of detailed follow-up of the cluster hot gas content, systematically characterizing sub-samples as well as exotic new objects.