XMM-LSS: 5,572 X-Ray Sources from Uniform 10-ksec Exposures

5,572 X-ray sources detected in the 0.5-2 keV or 2-10 keV energy bands above a detection likelihood of 15. This catalog covers the full 11.1 square degree survey area of the XMM-Large Scale Structure project, processed with the XAMIN pipeline and superseding an earlier version. The table was created by the HEASARC in February 2013 based on data from the final release described in Chiappetti et al. 2013.

Use Cases

• Identify and catalog X-ray sources like galaxy clusters and AGN based on detection likelihood and energy band fluxes.
• Study the spatial distribution of X-ray sources for large-scale structure analysis across an 11.1 square degree field.
• Cross-match X-ray sources with infrared, optical, and ultraviolet catalogs for multiwavelength object characterization.
• Analyze the properties of extended versus point-like sources using the provided classification parameters.

Strengths

• Contains 5,572 X-ray sources with a uniform 10-ksec exposure analysis, providing consistent depth.
• Covers a substantial 11.1 square degree survey area for statistical analysis of large-scale structure.
• Supersedes an earlier catalog and is linked to a multiwavelength database with additional data products like FITS images.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is known (5,572), but specific column definitions and sample data are unavailable for preview.

Provenance

Source

National Aeronautics and Space Administration (NASA), HEASARC, based on CDS catalog J/MNRAS/429/1652.

Collection Method

X-ray data from 124 XMM-Newton observations processed with the XAMIN pipeline, limited to sources with an off-axis angle < 13 arcmin.

Time Range

Observational data likely spans the XMM-LSS survey period, with final catalog release in 2013.

Freshness

Last updated 2026-03-13 17:30:02.992672; freshness should be verified.

Geography

Covers the celestial field of the XMM-LSS survey (11.1 square degrees).