VLA A370: 1.4-GHz Radio Source Catalog for a Galaxy Cluster

699 radio sources detected at 1.4 GHz in the field of galaxy cluster A370, observed with the Very Large Array. This catalog is based on one of the deepest radio images of a cluster field, covering a 40' x 40' area with a noise level of ~5.7 μJy near the center. The table was created by NASA HEASARC in August 2017 from a CDS source.

Use Cases

• Constructing differential radio source number counts based on flux density measurements.
• Analyzing the contribution of field radio galaxies versus cluster members based on redshift data.
• Investigating cosmic variance by comparing counts with other deep cluster observations like A2390.
• Cross-matching radio sources with optical spectral data for multi-wavelength studies.

Strengths

• Catalog contains 699 entries for sources detected at 1.4 GHz.
• Based on a deep radio image with a low noise level of ~5.7 μJy near the field center.
• Includes supplementary redshift data for 36 targets from optical spectroscopy.

Limitations

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

Provenance

Source

NASA HEASARC, based on CDS Catalog J/ApJS/202/2/.

Collection Method

Observations from the Very Large Array (VLA) in A and B configurations during 1994 and 1999.

Time Range

Observations primarily from 1999 August and September, with supplementary data from 1994 and 2012.

Freshness

Last updated 2026-03-13 16:47:55.129157; freshness should be verified.

Geography

Field centered at J2000 coordinates 02:39:32 -01:35:07, offset from the cluster center by ~5 arcminutes.