Chandra Deep Field-North: X-ray Source Catalog with Redshifts and Photometry

NASA HEASARC provides a redshift and photometric catalog for X-ray sources detected in the Chandra Deep Field-North (CDF-N). The table extends previous redshift work with photometric redshifts and includes updated optical and infrared photometric data. It was created in January 2009 based on electronic data from the referenced 2008 paper.

Use Cases

• Analyzing the effect of spectral type on X-ray luminosity function evolution based on the survey's spectroscopic completeness.
• Comparing optical spectral types with X-ray spectral properties using the combined photometric and redshift data.
• Bridging observational data between ultra-deep pencil-beam and large-area shallow surveys as part of the OPTX Project goals.

Strengths

• Catalog includes redshifts from previous work extended with photometric redshifts for the full sample.
• Provides updated optical and infrared photometric data for the X-ray sources.
• Part of the OPTX Project, which includes surveys noted as among the most spectroscopically complete to date.

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 deep-field survey.

Provenance

Source

NASA HEASARC, based on electronic data from the referenced astrophysics paper.

Collection Method

Created based on the electronic version of a table from a published paper, incorporating data from the CDF-N 2-megasecond exposure and previous optical/IR counterpart catalogs.

Time Range

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Freshness

Last updated 2026-03-13 18:01:55.252011; freshness should be verified.

Geography

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