NGC 2808 X-Ray Point Source Catalog from XMM-Newton

NASA HEASARC provides a catalog of 96 X-ray sources detected in the Galactic globular cluster NGC 2808 from a 41.8 ks XMM-Newton observation on February 1, 2005. The table, created in February 2009, contains results from spectral and variability analysis used to identify five sources likely related to the cluster, including candidate cataclysmic variables and a quiescent neutron star binary. The data supports comparison with population synthesis models for close binary systems.

Use Cases

• Identifying and classifying close binary systems in globular clusters based on X-ray, UV, and optical data cross-referencing.
• Testing population synthesis models for binary systems using the cataloged source properties and estimated counts.
• Studying the role of X-ray sources like cataclysmic variables and neutron star binaries in cluster stability and core collapse delay.

Strengths

• Catalog contains 96 X-ray sources detected above 4-sigma significance.
• Observation duration was 41.8 kiloseconds using three EPIC cameras on XMM-Newton.
• Analysis combines X-ray spectral data with ultraviolet observations from the XMM-Newton optical monitor and Hubble Space Telescope data.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration (NASA HEASARC), based on electronic data from the CDS (catalog J/A+A/480/397).

Collection Method

XMM-Newton observatory imaging mode observation using EPIC MOS1, MOS2, and pn cameras with a full frame window and medium filter.

Time Range

Observation date: February 1, 2005.

Freshness

Last updated 2026-03-13 17:28:42.960231; freshness should be verified.

Geography

Target: Galactic globular cluster NGC 2808.