MWA Low-Frequency Radio Survey of Kepler K2 Field 1

A 2014 multi-epoch radio survey of the Kepler K2 mission's Field 1, covering 314 square degrees in the North Galactic Cap. The survey was conducted by NASA using the Murchison Widefield Array (MWA) and the Giant Metrewave Radio Telescope (GMRT) at frequencies between 140 and 200 MHz, producing catalogs with 1,085, 1,468, and 7,445 detections. It provides a resource for multi-wavelength study of over 21,000 K2 target objects.

Use Cases

• Cross-match radio sources with optical Kepler K2 targets based on the survey's contemporaneous coverage.
• Study radio emission structures across angular scales using the multi-resolution data from MWA and GMRT.
• Search for radio flares from known flaring dwarf star types mentioned in the reference paper.
• Analyze source population statistics across three observation bands (154 MHz, 185 MHz, 148 MHz).

Strengths

• Covers 314 square degrees with contemporaneous observations matching the K2 campaign timeline.
• Provides multi-resolution data from two instruments (MWA at 4 arcmin, GMRT at 20 arcsec).
• Catalogs contain 1,085, 1,468, and 7,445 detections across three distinct frequency bands.
• Targets over 21,000 K2 objects for multi-wavelength investigation.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• GMRT observations are non-contemporaneous (historical from 2010-2012).

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Observations from the Murchison Widefield Array (15 nights in June/July 2014) and the Giant Metrewave Radio Telescope (historical TGSS ADR1 data).

Time Range

Primary MWA observations in June-July 2014, contemporaneous with K2 Campaign 1 (May 30 - August 21, 2014). GMRT data from 2010-2012.

Freshness

Last updated 2026-03-13 18:50:57.183275; freshness should be verified.

Geography

North Galactic Cap, centered at J2000.0 RA 11:35:45.51, Dec +01:25:02.28.