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

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

1994-09-12

arxiv.org/abs/astro-ph/9409025v1

Astronomy and Astrophysics

Astrophysics

9 pages, postscript. ApJ(Letters) submitted. Hardcopies of paper with figures available on request from dfrail@nrao.edu. Repor

Scientific paper

10.1086/187678

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.

Affiliated with

Also associated with

No associations

Rating

A Search for the Radio Counterpart to the March 1, 1994 Gamma Ray Burst does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Search for the Radio Counterpart to the March 1, 1994 Gamma Ray Burst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Search for the Radio Counterpart to the March 1, 1994 Gamma Ray Burst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-190192