eROSITA eFEDS: 27,910 X-Ray Sources in the 0.2-2.3 keV Band

27,910 X-ray sources, including 542 with significant spatial extent, detected by the eROSITA telescope in the eFEDS field. The catalog provides source positions, extent information, and fluxes in multiple energy bands, with a point source flux limit of ~6.5e-15 erg/cm²/s. This table was ingested by NASA HEASARC and is based on the eROSITA-DE Early Data Release.

Use Cases

• Cross-matching X-ray sources with other astronomical surveys based on provided positions and fluxes.
• Analyzing source spatial extent to identify extended objects like galaxy clusters.
• Studying the X-ray source population in a specific sky area based on the catalog's 140 square degree coverage.
• Validating X-ray data processing pipelines using the documented suite of tools and procedures.

Strengths

• Contains 27,910 primary X-ray sources with detection likelihoods >=6.
• Includes a supplementary catalog of 4,774 low-significance source candidates.
• Cross-matched with previous XMM-ATLAS observations, confirming excellent flux agreement.
• Based on observations calibrated by realistic simulations of the eROSITA eFEDS observations.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count for supplementary or hard band samples is not specified in the provided metadata.

Provenance

Source

eROSITA-DE Early Data Release, processed by NASA HEASARC.

Collection Method

Scanning observations by the eROSITA X-ray telescope on the SRG observatory during its performance verification phase.

Time Range

Observations were part of the eROSITA performance verification phase; specific dates are not provided.

Freshness

Last updated 2026-03-13 18:39:39.235226; freshness should be verified.

Geography

Covers the ~140 square degree eROSITA Final Equatorial Depth Survey (eFEDS) field.