We present the results of a new galaxy cluster search in the COSMOS field obtained using the Adaptive Matched Identifier of Clustered Objects (AMICO). Our aim was to produce a new cluster and group catalogue up to z=2 by performing an innovative application of AMICO with respect to previous successful applications to wide-field surveys in terms of depth (down to r3.0 and >3.5, respectively. A total of 490 candidates are detected in all three runs. Most of the detections unmatched between runs have S/N<3.5, which can be set as a threshold for selecting a more robust sample. We assigned X-ray properties to our detections by matching the catalogue with a public X-ray selected group sample and by estimating, for unmatched detections, the X-ray properties at the location of AMICO candidates using Chandra+XMM-Newton data. There are in total 622 candidate clusters and groups with an X-ray flux estimate. This large sample of candidates with X-ray properties allowed the calibration of the scaling relations between two AMICO mass-proxies (richness and cluster amplitude) and X-ray mass and the study of their redshift dependence for the selection of the most stable photometric bands.

Cone search capability for table J/A+A/687/A56/clusters (Catalogue of candidate clusters and groups)