WIBRaLS: Catalog of 7,855 Candidate Gamma-Ray Blazars
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Description
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.
License is listed as 'other-license-specified'; terms should be reviewed before use. File formats include BIN and HTML.