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Data Model: erass1sc

General description
This is the eRASS1 supercluster catalog. The fits table contains the properties of the 1338 supercluster systems detected in eRASS1. Please find more details in Liu et al. (2024).


Approximate size
132 KB

File type


Content of the page.


HDU Type
HDU Size
1 KB


HDU Type
HDU Size
120 KB
name char[20] None supercluster name
redshift float64 None supercluster redshift
ra float64 deg Right ascension J2000
dec float64 deg Declination J2000
multiplicity int64 None multiplicity, defined as the number of member clusters
mtot float64 10**14 solMass total mass
emtot float64 10**14 solMass 1sigma uncertainty in mtot
reliability float64 None reliability
dmem float64 Mpc average distance of supercluster members to the center
lproj float64 Mpc supercluster length


Liu, A., et al., The SRG/eROSITA All-Sky Survey. First catalog of superclusters in the western Galactic hemisphere, A&A, 683A, 130 (2024)


This work is based on data from eROSITA, the soft X-ray instrument aboard SRG, a joint Russian-German science mission supported by the Russian Space Agency (Roskosmos), in the interests of the Russian Academy of Sciences represented by its Space Research Institute (IKI), and the Deutsches Zentrum für Luft- und Raumfahrt (DLR). The SRG spacecraft was built by Lavochkin Association (NPOL) and its subcontractors and is operated by NPOL with support from the Max Planck Institute for Extraterrestrial Physics (MPE). The development and construction of the eROSITA X-ray instrument was led by MPE, with contributions from the Dr. Karl Remeis Observatory Bamberg \& ECAP (FAU Erlangen-Nuernberg), the University of Hamburg Observatory, the Leibniz Institute for Astrophysics Potsdam (AIP), and the Institute for Astronomy and Astrophysics of the University of Tübingen, with the support of DLR and the Max Planck Society. The Argelander Institute for Astronomy of the University of Bonn and the Ludwig Maximilians Universität Munich also participated in the science preparation for eROSITA. The eROSITA data shown here were processed using the eSASS/NRTA software system developed by the German eROSITA consortium.