CAIXA: Catalog of 156 AGN X-ray Spectra from XMM-Newton

March 2007 data comprises CAIXA, the Catalog of AGN In the XMM-Newton Archive. It contains 156 radio-quiet, X-ray unobscured active galactic nuclei observed in targeted observations, forming the largest catalog of high signal-to-noise X-ray spectra of AGN. The table was created by NASA's HEASARC in March 2009 based on CDS catalog files.

Use Cases

• Modeling X-ray spectral properties of AGN based on homogeneously extracted EPIC pn spectra.
• Correlating X-ray data with black hole masses derived from multiwavelength literature data.
• Analyzing relationships between X-ray emission and optical broad line widths based on H(beta) FWHM data.
• Studying the radio-quiet AGN population using complementary radio and optical flux measurements.

Strengths

• Contains 156 sources, described as the largest catalog of high signal-to-noise X-ray spectra of AGN.
• Spectral extraction and baseline model application were performed homogeneously for all sources.
• X-ray data is complemented by multiwavelength parameters like black hole masses and optical fluxes from literature.

Limitations

• Data snapshot is from March 2007; observations and complementary literature data are not current.
• Row count and column definitions are unknown, limiting suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

NASA HEASARC, based on CDS catalog J/A+A/495/421.

Collection Method

Homogeneous extraction of EPIC pn spectra from XMM-Newton targeted observations, complemented by literature data.

Time Range

Observations public as of March 2007.

Freshness

Last updated 2026-03-13 17:39:57.837760; freshness should be verified.

Geography

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