SERVS XMM-LSS: Infrared Source Catalog for Extragalactic Fields

The Spitzer Extragalactic Representative Volume Survey (SERVS) catalog contains infrared observations from the Spitzer Space Telescope's IRAC instrument at 3.6 and 4.5 microns. It covers five extragalactic fields: ELAIS-N1, Lockman Hole, XMM, ELAIS-S1, and CDFS. The data is provided by NASA and was last updated in March 2026.

Use Cases

• Cross-matching infrared sources with near-infrared or other wavelength catalogs based on the single-band reliability flags.
• Conducting statistical analyses of extragalactic populations based on the deep, single-band observations.
• Studying galaxy evolution and properties in the five surveyed extragalactic fields.

Strengths

• Observations are deep, with a cut at CSNR > 5, suggesting high signal-to-noise for detected sources.
• Covers five distinct, well-known extragalactic fields, providing a broad observational base.
• Single-band catalogs are designed for maximum matches, useful for cross-survey studies.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Objects are not required to have counterparts in the other IRAC band, which may complicate multi-band analysis.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Observations from the Spitzer Space Telescope's IRAC instrument as part of the SERVS Exploration Science program.

Time Range

null

Freshness

Last updated 2026-03-13 20:06:40.332809; freshness should be verified.

Geography

Observations cover five extragalactic fields: ELAIS-N1, Lockman Hole, XMM, ELAIS-S1, and CDFS.