XMM-Newton Bright Serendipitous Survey: AGN X-Ray Spectral Properties

More than 300 active galactic nuclei (AGN) up to redshift ~2.4, analyzed from the XMM-Newton Bright Serendipitous Survey. The table contains results from a detailed X-ray spectral analysis performed by researchers, including individual and average spectral properties. This dataset was created by NASA's HEASARC in November 2011 based on catalog files from the Centre de Données astronomiques de Strasbourg.

Use Cases

• Modeling the relationship between spectral index and hard X-ray luminosity based on the described anticorrelation.
• Testing AGN unified schemes against the intrinsic column density distribution and noted exceptions.
• Investigating the origin and characteristics of the 'soft-excess' spectral feature in unabsorbed versus absorbed AGN.
• Fitting average AGN spectra using combinations of power laws, Fe K-alpha emission lines, and reflection components as described.

Strengths

• Contains more than 300 AGN, providing a substantial sample for statistical analysis.
• Includes sources up to redshift ~2.4, offering a view of high-redshift AGN.
• Analysis includes both individual source spectra and average spectra for different AGN types.
• Spectral analysis reveals statistically significant (>2 sigma) differences in photon index between high and low luminosity sources.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-03-13 18:41:43.052076; freshness should be verified.

Provenance

Source

NASA HEASARC, based on CDS Catalog J/A+A/530/A42.

Collection Method

Flux-limited samples selected in the 0.5-4.5 keV and 4.5-7.5 keV energy bands from the XMM-Newton satellite.

Freshness

Last updated 2026-03-13 18:41:43.052076