Cygnus TeV Source Chandra X-Ray Point Source Catalog with 240 Detections

240 pointlike X-ray sources were detected within a 50 ks Chandra observation of the unidentified TeV gamma-ray source region TeV J2032+4130 in Cygnus. The catalog, created by NASA HEASARC in 2007, includes 2MASS near-infrared counterparts for 130 (54%) of these sources. The observation was centered on J2000.0 coordinates (RA, Dec) = (20 32 07.0, +41 30 30) and conducted on 2004 July 12.

Use Cases

• Cross-matching X-ray and near-infrared sources based on the 2MASS counterpart data.
• Analyzing the spatial distribution of pointlike X-ray sources within the TeV J2032+4130 region.
• Identifying potential stellar counterparts for high-energy gamma-ray sources based on the catalog of massive stars.
• Studying the relationship between X-ray point sources and extended TeV gamma-ray emission regions.

Strengths

• Contains 240 detected pointlike X-ray sources.
• Includes 2MASS near-infrared counterpart data for 130 sources (54%).
• Observation has a defined effective exposure time of 48,728 seconds.
• Provides precise J2000.0 coordinates for the observation center.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect observational bias inherent to the specific Chandra observation and source region.

Provenance

Source

National Aeronautics and Space Administration (NASA HEASARC)

Collection Method

Based on a 50 ks Chandra observation using the ACIS-I instrument on 2004 July 12.

Time Range

Observation date: 2004 July 12.

Freshness

Last updated 2026-03-13 19:56:40.715610; freshness should be verified.

Geography

Celestial region centered on (RA, Dec) = (20 32 07.0, +41 30 30) in Cygnus.