SDWFS: Spitzer Infrared Survey of the Boötes Field

A four-epoch infrared survey of 10 square degrees in the Boötes field, conducted by the Spitzer Space Telescope's IRAC instrument. The data, produced by NASA as a Spitzer Cycle 4 Legacy project, consists of 20 band-matched catalogs reporting Vega magnitudes in four wavelengths. It is designed to characterize galaxy evolution beyond redshift 1.5 and select variable objects.

Use Cases

• Selecting infrared-variable objects based on the four-epoch survey design mentioned in the description
• Characterizing galaxy evolution beyond redshift 1.5 based on the survey's sensitivity to galaxies out to z ~ 3
• Identifying high proper motion objects based on the multi-epoch observations over years
• Analyzing cosmic variance impact for rich galaxy systems based on the survey's large volume

Strengths

• Covers a 10 square degree field, providing a large survey volume
• Includes four epochs of observation, enabling time-domain analysis over years
• Provides source coordinates matched to 2MASS catalog positions within 0.2 arcsec
• Reports magnitudes from three measurement methods per source

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observational data from the IRAC instrument on the Spitzer Space Telescope, processed into band-matched catalogs.

Time Range

Observations conducted over four epochs (timescales of years).

Freshness

Last updated 2026-03-13 18:43:35.217106; freshness should be verified

Geography

The Boötes field (10 square degrees).