The eROSITA telescope array aboard the Spektrum Roentgen Gamma (SRG) satellite
began surveying the sky in December 2019, with the aim of producing all-sky X-ray source …

Clusters of galaxies can be used as powerful probes to study astrophysical processes on
large scales, test theories of the growth of structure, and constrain cosmological models. The …

Context. The eROSITA X-ray telescope on board the Spectrum-Poentgen-Gamma (SPG)
observatory combines a large field of view and a large collecting area in the energy range …

The current standard model of cosmology successfully describes a variety of measurements,
but the nature of its main ingredients, dark matter and dark energy, remains unknown. is a …

Context. In November 2019, eROSITA on board of the Spektrum-Roentgen-Gamma (SRG)
observatory started to map the entire sky in X-rays. After the four-year survey program, it will …

Hierarchical clustering is a common algorithm in data analysis. It is unique among many
clustering algorithms in that it draws dendrograms based on the distance of data under a …

We present the first cosmological study of a sample of eROSITA clusters, which were
identified in the eROSITA Final Equatorial Depth Survey (eFEDS). In a joint selection on X …

Context. The eROSITA Final Equatorial Depth Survey (eFEDS), observed with eROSITA
ahead of its planned 4-yr all-sky survey, is the largest contiguous-field X-ray survey at …

The first SRG/eROSITA All-Sky Survey (eRASS1) provides the largest intracluster medium-
selected galaxy cluster and group catalog covering the western Galactic hemisphere …

Context. eROSITA will deliver an unprecedented volume of X-ray survey observations, 20−
30 times more sensitive than ROSAT in the soft band (0.5− 2.0 keV) and for the first time …