Chandra X-Ray Point Sources in 18 Distant Galaxy Clusters

18 distant galaxy clusters observed by the Chandra X-ray Observatory form the basis for analyzing point-source over-densities. The study finds a ~2-sigma excess of bright X-ray sources, likely AGN, within the inner 0.5 Mpc of cluster regions. This data, sourced from the NASA Chandra archive, supports investigations into source contamination of cluster emission.

Use Cases

• Modeling the log N - log S relation for X-ray point sources based on soft and hard energy band data.
• Investigating the radial distribution of X-ray sources within cluster regions based on the described 1 Mpc analysis area.
• Comparing point-source populations in cluster fields against non-cluster fields as described in the study methodology.
• Estimating AGN contamination in cluster diffuse emission based on luminosity ranges (10^43 to 10^44 erg s^-1) mentioned in the description.

Strengths

• Data originates from the Chandra Observatory, noted for its superb angular resolution.
• Sample includes 18 galaxy clusters with precisely defined redshift range (0.25 < z < 1.01).
• Analysis covers both soft and hard energy bands, allowing for multi-band comparisons.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale ML tasks.

Provenance

Source

National Aeronautics and Space Administration (NASA) Chandra archive.

Collection Method

Observational data from Chandra X-ray Observatory exposures, analyzed to construct source count relations.

Time Range

Redshift range 0.25 to 1.01 for the observed galaxy clusters.

Freshness

Last updated 2026-03-13 18:49:30.185230; freshness should be verified.

Geography

Celestial coordinates (RA, Dec) for 18 galaxy clusters.