GRB Afterglows: Intensity and Redshift Measurements from Multiple Observatories

NASA HEASARC's GRB Afterglow catalog contains intensity and redshift measurements from ground and space-based telescopes. The catalog records afterglow measurements for bursts detected after May 1996, with multiple entries per GRB from different observatories. It was compiled by the author(s) in 2005 and ingested by HEASARC in June 2008, with updates when new measurements are reported.

Use Cases

• Analyze afterglow intensity evolution based on multi-observatory measurements.
• Study redshift distribution of gamma-ray bursts based on cataloged measurements.
• Correlate afterglow properties with burst characteristics based on linked main GRB catalog.
• Validate observational models using historical afterglow data from 1996 onward.

Strengths

• Data is sourced from authoritative publications, IAU circulars, and GCN notices.
• Catalog is linked to a main GRB catalog and is updated with new reports.
• Provides multiple observational entries per gamma-ray burst event.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data was compiled in 2005, though the catalog receives updates.

Provenance

Source

National Aeronautics and Space Administration (NASA HEASARC)

Collection Method

Compiled from journal publications, IAU circulars, and GCN notices.

Time Range

Bursts detected after May 1996

Freshness

Last updated 2026-03-13 16:33:13.735157; freshness should be verified.