WIBRaLS: Catalog of 7,855 Candidate Gamma-Ray Blazars

NASA HEASARC provides a catalog of 7,855 radio-loud candidate gamma-ray emitting blazars, assembled from WISE mid-infrared sources cross-matched with radio surveys. The catalog classifies sources as BL Lacs, FSRQs, or mixed candidates, with 1,295 sources re-associated as confirmed blazars. This table was created in December 2014 based on a reference paper from the ApJS website.

Use Cases

• Identify candidate low-energy counterparts for high-energy sources based on WISE infrared colors and radio-loudness.
• Classify blazar types (BL Lac, FSRQ) based on the Multi-wavelength Blazar Catalog nomenclature.
• Study the properties of radio-loud sources with mid-infrared colors compatible with confirmed gamma-ray blazars.
• Assess possible contaminants in blazar candidate catalogs as described by the authors.

Strengths

• Catalog contains 7,855 candidate sources with classifications.
• 1,295 sources are spatially re-associated as confirmed blazars.
• WISE magnitudes are corrected for galactic extinction using a published law.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is known, but individual feature counts and distributions are not detailed.
• Data was created in 2014; freshness should be verified for current research.

Provenance

Source

National Aeronautics and Space Administration (NASA HEASARC)

Collection Method

Assembled from WISE sources detected in four filters, cross-matched with NVSS, FIRST, and/or SUMSS radio surveys.

Time Range

Based on WISE survey data; specific observation dates are not provided.

Freshness

Last updated 2026-03-13 18:31:57.739451; freshness should be verified.

Geography

All-sky coverage from space-based WISE and ground-based radio surveys.