DEEP2 Galaxy Survey: Chandra X-Ray Point Source Catalog with Optical Counterparts

A catalog of 2976 unique X-ray point sources detected by the Chandra ACIS-I instrument across four DEEP2 galaxy survey fields covering a combined ~3.2 deg². The table includes optical counterpart properties for 2126 (~71.4%) of the X-ray sources, such as magnitude and redshift. This catalog was created by NASA HEASARC in October 2012 based on data from a published astrophysical journal.

Use Cases

• Cross-matching X-ray and optical sources based on the Bayesian-style association method described.
• Analyzing the log N-log S distribution of X-ray sources to compare with other deep field surveys.
• Studying the properties of galaxies with active nuclei using the provided optical source properties like redshift and magnitude.

Strengths

• Contains 2976 unique X-ray sources with an expected false-source contamination of less than ~1% (~30 sources).
• Provides optical counterpart data for 2126 sources (~71.4% +/- 2.8%) with a low estimated contamination fraction of ~6%.
• Covers a large survey area of ~3.2 deg², providing stronger constraints on source distributions at high fluxes.

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 18:45:51.150107; freshness should be verified.

Provenance

Source

NASA HEASARC, based on tables from a published paper in The Astrophysical Journal Supplement Series.

Collection Method

Produced from Chandra ACIS-I observations of four DEEP2 survey fields, with sources detected in individual and merged images.

Time Range

Observation dates not specified in the provided metadata.

Freshness

Catalog created in October 2012; last metadata update recorded in 2026.

Geography

Covers four celestial fields in the DEEP2 Galaxy Redshift Survey area.