NGC 2808: Chandra X-Ray Point Source Catalog with 113 Detections

113 X-ray sources detected in a Chandra observation of the globular cluster NGC 2808, with 16 sources located inside the cluster's half-mass radius. NASA HEASARC created this catalog in February 2009 based on data from observations conducted in June 2007, cross-referenced with earlier XMM-Newton and Hubble Space Telescope data. The data was compiled to classify sources and understand their role in globular cluster evolution.

Use Cases

• Classifying X-ray source types based on color and variability analysis mentioned in the description.
• Comparing detected source populations to synthesis models and other cluster observations as described.
• Identifying faint X-ray sources associated with the cluster core using positional data.
• Cross-matching multi-wavelength data using Chandra, XMM-Newton, and Hubble counterparts.

Strengths

• Contains 113 detected X-ray sources with 16 concentrated within the cluster's core region.
• Integrates data from multiple space observatories: Chandra, XMM-Newton, and Hubble Space Telescope.
• Observation dates and exposure times (46 and 11 kiloseconds) are explicitly stated.

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 17:53:57.941083; freshness should be verified.

Provenance

Source

NASA HEASARC, based on data from the Chandra X-ray Observatory and a referenced paper (J/A+A/490/641).

Collection Method

Sources detected and analyzed from Chandra ACIS-I observations, cross-matched with existing XMM-Newton and Hubble data.

Time Range

Observations conducted on 2007 June 19-21.

Freshness

Catalog created in 2009 from 2007 observations; metadata updated in 2026.

Geography

Target is the Galactic globular cluster NGC 2808.