DUSTiNGS: Infrared Source Catalog for 50 Nearby Dwarf Galaxies

DUSTiNGS is a catalog of infrared observations for 50 dwarf galaxies within 1.5 megaparsecs, mapped by the Spitzer Space Telescope. The dataset includes images and source catalogs at 3.6 and 4.5 microns, released by NASA. The data was published in 2015 and the catalog record was last updated in March 2026.

Use Cases

• Identify and catalog infrared point sources in dwarf galaxies based on uniform 3.6 and 4.5 micron observations.
• Study dust content and star formation activity across different galaxy types (dwarf spheroidal, irregular, transition).
• Apply photometric quality cuts to filter source catalogs for morphology and accuracy analysis.
• Compare stellar populations and infrared emission properties across a sample of 50 nearby galaxies.

Strengths

• Sample includes 50 dwarf galaxies within a defined distance of 1.5 Mpc.
• Data is based on uniform observations from the Spitzer Space Telescope's IRAC instrument.
• Catalogs are available in 'full' and quality-filtered 'good' versions for different analysis needs.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data may reflect observational bias inherent to the Spitzer telescope's capabilities and the selected sample.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Observational data gathered by the Spitzer Space Telescope's IRAC channels.

Time Range

Observational period not specified; catalog details published in 2015.

Freshness

Last updated 2026-03-13 19:59:11.781851; freshness should be verified.

Geography

Extragalactic; sample of 50 dwarf galaxies within 1.5 Mpc of Earth.