COUP: Chandra Orion Ultradeep X-Ray Point Source Catalog

The Chandra Orion Ultradeep Project catalog contains more than 1600 X-ray point sources detected in the Orion Nebula Cluster. NASA's Chandra X-Ray Observatory captured the data during a continuous 13.2-day, 838 ks exposure in January 2003. The HEASARC created this table in September 2006 based on source catalog data from the CDS.

Use Cases

• Analyze X-ray emission properties of young stars based on the deep, uniform observation mentioned in the description
• Study stellar populations and evolution in the Orion Nebula Cluster based on the catalog of point sources
• Train or validate models for X-ray source detection and classification based on the cataloged point sources

Strengths

• More than 1600 X-ray point sources detected
• Observation provides a uniform and comprehensive data set on X-ray emission of normal stars
• Data from a deep 838 ks exposure over a continuous 13.2-day period

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

Collection Method

Observation with the Chandra X-Ray Observatory's Advanced CCD Imaging Spectrometer (ACIS)

Time Range

Observation from January 2003

Freshness

Last updated 2026-03-13 20:15:38.971898; freshness should be verified

Geography

Orion Nebula Cluster