A catalogue of clusters of galaxies identified from all sky surveys of 2MASS, WISE, and SuperCOSMOS

TL;DR

This paper presents a catalog of 47,600 galaxy clusters identified from all-sky surveys 2MASS, WISE, and SuperCOSMOS, including 26,125 new detections, with high detection efficiency for massive clusters and new X-ray candidates.

Contribution

It provides a comprehensive galaxy cluster catalog from multiple surveys, including new detections and X-ray counterparts, enhancing cluster studies and cosmological research.

Findings

Identified 47,600 galaxy clusters, 26,125 are new.

Detected about 90% of massive clusters in the specified redshift range.

False detection rate is less than 5%.

Abstract

We identify 47,600 clusters of galaxies from photometric data of Two Micron All Sky Survey (2MASS), Wide-field Infrared Survey Explorer (WISE), and SuperCOSMOS, among which 26,125 clusters are recognized for the first time and mostly in the sky outside the Sloan Digital Sky Survey (SDSS) area. About 90% of massive clusters of M_{500}>3*10^{14} M_{\odot} in the redshift range of 0.025<z<0.3 have been detected from such survey data, and the detection rate drops down to 50% for clusters with a mass of M_{500}~1*10^{14} M_{\odot}. Monte Carlo simulations show that the false detection rate for the whole cluster sample is less than 5%. By cross-matching with ROSAT and XMM-Newton sources, we get 779 new X-ray cluster candidates which have X-ray counterparts within a projected offset of 0.2 Mpc.