Spitzer Extragalactic First Look Survey: MMT/Hectospec Spectroscopic Catalog

A spectroscopic catalog from the Spitzer Extragalactic First Look Survey, which aimed to characterize mid-infrared source populations. The survey comprises 4 square degrees of imaging from the Spitzer Space Telescope's MIPS and IRAC instruments, supported by ancillary ground-based optical and radio data. This specific catalog allows advanced queries of the MMT/Hectospec spectra described in a 2006 publication.

Use Cases

• Characterizing extragalactic source populations based on mid-infrared observations.
• Cross-matching spectroscopic data with multi-wavelength imaging from ground and space telescopes.
• Analyzing galaxy properties using ancillary optical and radio data mentioned in the survey description.
• Conducting statistical studies of astronomical sources down to sub-millijansky flux levels.

Strengths

• Data originates from the Spitzer Space Telescope, a NASA observatory.
• Survey covers 4 square degrees of sky with 67 hours of observation time.
• Includes ancillary data from multiple ground-based optical and radio telescopes.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observations from the Spitzer Space Telescope's MIPS and IRAC instruments, supplemented by MMT/Hectospec ground-based spectroscopy.

Time Range

Observations began after Science Verification completion in November 2003.

Freshness

Last updated 2026-03-13 18:57:55.372790; freshness should be verified.

Geography

Centered at celestial coordinates J1718+5930.