CfA2S: Redshift Survey of ~4300 Galaxies in the South Galactic Cap

The CfA Redshift Survey South Galactic Cap (CFA2S) Catalog contains redshifts for a sample of about 4300 galaxies with blue magnitude <= 15.5, covering a specific region of the sky. Redshifts for 2964 of these galaxies were measured as part of the second CfA Redshift Survey, revealing large-scale structures like voids and the Perseus-Pisces Supercluster. This table was created by NASA's HEASARC in March 2005 based on data from the Center for Astrophysics.

Use Cases

• Mapping galaxy distribution and large-scale cosmic structures based on redshift data.
• Analyzing the size and properties of cosmic voids mentioned in the description.
• Studying the relationship between galaxy density and redshift velocity.
• Investigating the structure of the Perseus-Pisces Supercluster and surrounding regions.

Strengths

• Contains redshift data for approximately 4300 galaxies.
• Sample is described as complete for galaxies from merged Zwicky and Nilson catalogs in the surveyed region.
• Includes 2964 redshifts measured as part of the second CfA Redshift Survey.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data was created in 2005; freshness should be verified for current research.

Provenance

Source

Center for Astrophysics (CfA) / NASA HEASARC

Collection Method

Redshift measurements from the second CfA Redshift Survey.

Time Range

Survey period not specified; catalog created March 2005.

Freshness

Last updated 2026-03-13 18:45:40.163320; freshness should be verified.

Geography

Covers the south Galactic cap from 20h to 4h in right ascension and -2.5 deg to 90 deg in declination.