LOFAR Radio Catalog of Herschel-ATLAS North Galactic Pole Field
Updated 3mo ago
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Description
Low-Frequency Array (LOFAR) observations of the Herschel-ATLAS North Galactic Pole survey area, covering around 142 square degrees of sky in the 126-173 MHz frequency range. The catalog, produced by NASA, presents a 5-sigma source list derived from four pointings with imaging at a resolution of ~10 x 6 arcsec and off-source noise ranging from 100 μJy/beam to 2 mJy/beam. The reference paper includes initial science results on the radio/far-infrared correlation, number counts, luminosity functions, and radio galaxy life cycles.
Use Cases
Analyzing the radio/far-infrared correlation at 150 MHz based on the joint LOFAR and Herschel source detections.
Studying 150 MHz luminosity functions for active and star-forming galaxies based on the derived source catalog.
Investigating number counts at 150 MHz, including constraints on star-forming galaxy populations.
Examining radio galaxy life cycles based on the multi-frequency observations and source properties.
Strengths
Covers a significant area of approximately 142 square degrees of sky.
Provides high-resolution imaging approaching ~10 x 6 arcsec.
Includes observations across six spectral windows (126-173 MHz) for in-band spectral index measurement.
Limitations
Description metadata is limited; actual data quality requires manual inspection after download.
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 (NASA)
Collection Method
Observations from the Low-Frequency Array (LOFAR) High-Band Array (HBA) using HBA_DUAL_INNER mode, reduced with facet calibration methods.
Time Range
Observations conducted in 2014, with one early observation of ~10 hours and others of ~8 hours.
Freshness
Last updated 2026-03-13 18:12:59.351133; freshness should be verified.
Geography
North Galactic Pole (NGP) field, covering four separate pointings.
License is listed as 'other-license-specified'; specific terms must be reviewed before use.