The XXL Survey XX: The 365 cluster catalogue
C. Adami, P. Giles, E. Koulouridis, F. Pacaud, C.A. Caretta, M., Pierre, D. Eckert, M.E. Ramos-Ceja, F. Gastaldello, S. Fotopoulou, V., Guglielmo, C. Lidman, T. Sadibekova, A. Iovino, B. Maughan, L. Chiappetti, S., Alis, B. Altieri, I. Baldry, D. Bottini, M. Birkinshaw

TL;DR
The paper presents the release and detailed description of the XXL Survey's 365 galaxy cluster catalogue, including properties, follow-up observations, and derived relations, supporting cosmological research.
Contribution
It provides a well-characterized, publicly available galaxy cluster sample with comprehensive properties and validation, enhancing resources for cosmological studies.
Findings
Cluster sample extends up to z~1.2 with one at z~2.
X-ray temperature measurements for 80% of bright clusters.
Updated luminosity function and temperature relation with smaller uncertainties.
Abstract
In the currently debated context of using clusters of galaxies as cosmological probes, the need for well-defined cluster samples is critical. The XXL Survey has been specifically designed to provide a well characterised sample of some 500 X-ray detected clusters suitable for cosmological studies. The main goal of present article is to make public and describe the properties of the cluster catalogue in its present state, as well as of associated catalogues as super-clusters and fossil groups. We release a sample containing 365 clusters in total. We give the details of the follow-up observations and explain the procedure adopted to validate the cluster spectroscopic redshifts. Considering the whole XXL cluster sample, we have provided two types of selection, both complete in a particular sense: one based on flux-morphology criteria, and an alternative based on the [0.5-2] keV flux within…
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