Second INTEGRAL AGN Catalog: Hard X-ray Properties of 199 Active Galaxies

199 Active Galactic Nuclei (AGN) detected by the INTEGRAL satellite at energies above 20 keV. The catalog, created by NASA HEASARC in November 2009, provides spectral parameters, fluxes, and luminosities for 148 objects with significant detections and includes optical V-band photometry for 57 AGN. It was compiled from tables in the reference paper 'J/A+A/505/417'.

Use Cases

• Testing the unified scheme for Seyfert galaxies based on hard X-ray spectral analysis.
• Investigating correlations between hard X-ray luminosity, optical luminosity, and central black hole mass.
• Studying spectral differences and Eddington ratios between Seyfert 1, 1.5, and 2 galaxy types.
• Analyzing optical variability for a subset of 57 AGN using the included V-band photometry.

Strengths

• Contains data for 199 AGN, with significant spectral extraction for 148 objects.
• Includes multi-instrument data from INTEGRAL's IBIS/ISGRI, JEM-X, and OMC.
• Enables direct comparison of hard X-ray spectral slopes between Seyfert types.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The table does not include results from more complex spectral fits (e.g., cut-off power law model) or joint JEM-X/IBIS fits, which are in separate reference paper tables.

Provenance

Source

National Aeronautics and Space Administration (NASA HEASARC)

Collection Method

Analysis of INTEGRAL satellite (IBIS/ISGRI, JEM-X, OMC) observational data.

Time Range

Coverage corresponds to INTEGRAL mission observations; specific date range not provided.

Freshness

Last updated 2026-03-13 16:37:25.110675; freshness should be verified.

Geography

Astronomical observations, not Earth-bound.