FRICAT: Catalog of 233 Fanaroff-Riley Class I Radio Galaxies

219 Fanaroff and Riley class I edge-darkened radio galaxies (FR Is) form the main FRICAT catalog, with an additional 14 smaller sources in the sFRICAT sample. The catalog was built by the authors by combining observations from the NVSS, FIRST, and SDSS surveys and is hosted by NASA HEASARC. This HEASARC table was created in February 2017 based on data from the Astronomy & Astrophysics website.

Use Cases

• Classifying radio galaxy morphology based on the edge-darkened criteria described.
• Analyzing the relationship between radio luminosity and optical emission line luminosity for low-excitation galaxies.
• Comparing properties like host galaxy luminosity and black hole mass ranges against other catalogs like 3C.
• Studying the population diversity of FR I galaxies beyond the high-luminosity 3C sample.

Strengths

• Contains 233 total sources (219 main, 14 supplementary) with defined selection criteria (redshift <= 0.15, radius > 30 kpc).
• Host galaxy properties are characterized, including luminosity ranges and black hole mass estimates (10^8 to 3x10^9 solar masses).
• Sources are cross-matched with major surveys (NVSS, FIRST, SDSS), providing multi-wavelength context.

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 data from the Astronomy & Astrophysics website.

Collection Method

Combined observations from the NVSS, FIRST, and SDSS surveys, selected from a published sample.

Time Range

Observational data time range is not specified in the description.

Freshness

Last updated 2026-03-13 18:56:09.243750; freshness should be verified.

Geography

Spatial coverage is celestial; specific sky regions are not detailed.