Most Comprehensive High-Energy Universe Census
The German eROSITA Consortium has released its second major dataset, doubling the number of known X-ray sources to two million. This comprehensive census provides detailed mapping of stars, supermassive black holes, and galaxy clusters across the high-energy universe.
Why it matters
This data significantly advances our understanding of cosmic structures and high-energy phenomena, serving as a foundational resource for global astrophysical research.
Second data release nearly doubles the previously known eROSITA X-ray sources to two million
The colour image shows X-ray sources in the western galactic hemisphere of the X-ray sky. The Galactic plane lies horizontally through the centre of the image. Sources in the eROSITA catalogue are plotted with their red, green and blue brightness showing their count rate in soft (0.5-1.0 keV), medium (0.5-1.0 keV) and hard (1.0-2.0 keV), respectively. The sky is plotted using an azimuthal equal area projection.
The German eROSITA Consortium (eROSITA-DE), led by the Max Planck Institute for Extraterrestrial Physics (MPE), has released its second major public dataset, eROSITA Data Release 2 (DR2). The new catalogue comprises close to two million X-ray sources-approximately doubling the number of previously released eROSITA sources in the X-ray sky and marking a major step forward in mapping the high-energy Universe.
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