MOXC: X-Ray Point Source Catalog for Massive Star-Forming Regions

The Massive Star-forming Regions Omnibus X-ray Catalog (MOXC) contains 20,623 X-ray point sources from Chandra/ACIS observations of 12 massive star-forming regions across the Galaxy and the Large Magellanic Cloud. It was compiled by NASA and includes observations from 2000 to 2013. The catalog focuses on the morphology of unresolved X-ray emission linked to massive star feedback.

Use Cases

• Analyze the distribution and properties of X-ray point sources in massive star-forming regions based on the catalog's photometric quantities.
• Study the correlation between unresolved diffuse X-ray emission and structures like ionization fronts and bubbles based on the context of Spitzer and WISE observations mentioned.
• Investigate the role of hot plasma from massive star wind shocks in star-forming region physics based on the described diffuse emission.
• Compare X-ray source characteristics across different galactic distances (1.7 to 50 kpc) based on the catalog's regional coverage.

Strengths

• Contains 20,623 distinct X-ray point sources from 12 different massive star-forming regions.
• Observations span a significant time range from 2000-04-03 to 2013-01-31.
• Includes data from both Galactic targets and the extragalactic target 30 Doradus in the Large Magellanic Cloud.
• Photometric quantities are provided for full, soft, and hard X-ray energy bands.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• All photometric quantities are apparent and not corrected for absorption, which may require additional processing for some analyses.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Compiled from Chandra/ACIS observations.

Time Range

2000-04-03 to 2013-01 31

Freshness

Last updated 2026-03-13 18:46:09.891774; freshness should be verified.

Geography

12 massive star-forming regions across the Galaxy and the Large Magellanic Cloud.