XMM-COSMOS: 255 X-Ray Selected Type-2 Active Galactic Nuclei

NASA HEASARC provides a table of 255 spectroscopically identified Type-2 Active Galactic Nuclei from the XMM-COSMOS survey. The data includes X-ray and bolometric luminosities, stellar masses, star formation rates, and morphological classifications for 90% of the sample. This table was created in October 2011 based on a published study.

Use Cases

• Modeling spectral energy distributions (SEDs) based on multi-wavelength properties from mid-infrared to hard X-ray.
• Investigating the relationship between X-ray luminosity and mid-infrared AGN contribution as described.
• Analyzing host galaxy morphology preferences for Type-2 AGN based on the provided ZEST+ classifications.
• Comparing bolometric corrections between Type-1 and Type-2 AGN populations.
• Estimating stellar masses and star formation rates using the multi-component modeling results.

Strengths

• Contains 255 spectroscopically identified sources, providing a substantial sample.
• X-ray absorbing column density determined for the sample via spectral analysis or hardness ratios.
• Morphological classifications are available for 90% of the sample (approximately 229 sources).
• Includes derived physical parameters like bolometric luminosities, stellar masses, and star formation rates.

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 18:34:59.301535; freshness should be verified.

Provenance

Source

National Aeronautics and Space Administration, NASA HEASARC

Collection Method

Results from a study of the XMM-COSMOS survey, with data derived from multi-wavelength observations and analyses.

Time Range

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Freshness

Data originates from a 2011 creation date, with a metadata correction in 2018.

Geography

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