A Search for the Radio Counterpart to the March 1, 1994 Gamma Ray Burst

Abstract

We report on the results of a search for the radio counterpart to the bright gamma-ray burst of March 1, 1994. Using the Dominion Radio Astrophysical Observatory Synthesis Telescope sensitive, wide-field radio images at 1.4 GHz and 0.4 GHz were made of a region around GRB940301. A total of 15 separate radio images were obtained at each frequency, sampling a near-continuous range of post-burst timescales between 3 and 15 days, as well as 26, 47 and 99 days. We place an upper limit of 3.5 mJy on a fading/flaring radio counterpart at 1.4 GHz and 55 mJy at 0.4 GHz. Previous searches have concentrated on searching for a counterpart at only one epoch following the outburst. In contrast, the present search maintains high sensitivity over two decades of post-burst time durations. Time-variable radio emission after the initial gamma-ray burst is a prediction of all fireball models, currently the most popular model for gamma-ray bursts. Our observations allow us to put significant constraints on the fireball parameters for cosmological models of gamma-ray bursts.

9 pages, postscript. ApJ(Letters) submitted. Hardcopies of paper with figures available on request from [email protected]. Report 002

Cited by in corpus (17)

• Radio Properties of Tidal Disruption Events
• The SUrvey for Pulsars and Extragalactic Radio Bursts II: New FRB discoveries and their follow-up
• The Caltech-NRAO Stripe 82 Survey (CNSS) Paper I: The Pilot Radio Transient Survey In 50 deg${}^2$
• VAST: An ASKAP Survey for Variables and Slow Transients
• A VLA search for 5 GHz radio transients and variables at low Galactic latitudes
• Variability of sub-mJy radio sources
• Sensitive Search For Radio Variables And Transients In The Extended Chandra Deep-Field South
• The 1.4 GHz light curve of GRB 970508
• A Late-Time Galaxy-Targeted Search for the Radio Counterpart of GW190814
• 21 new long-term variables in the GX 339-4 field: two years of MeerKAT monitoring
• Radio Monitoring of the January 11, 1997 Gamma-Ray Burst
• Radio variability in the Phoenix Deep Survey at 1.4GHz
• Radio and Optical Follow-up Observations and Improved IPN Position of GRB 970111
• A GMRT 150 MHz Search for Variables and Transients in Stripe 82
• Multi-epoch Low Radio Frequency Surveys of the Kepler K2 Mission Campaign Fields 3, 4, and 5 with the Murchison Widefield Array
• A search for millimetric emission from Gamma Ray Bursts
• Search for GRB counterparts