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Shocked by GRB 970228: the afterglow of a cosmological fireball

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arxiv astro-ph/9704153 v2 pith:X2K5HFBR submitted 1997-04-15 astro-ph

Ralph A.M.J. Wijers , Martin J. Rees (Institute of Astronomy , Cambridge) , Peter Meszaros (Department of Astronomy , Astrophysics , Pennsylvania State University) This is my paper · ORCID
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The location accuracy of the BeppoSAX Wide Field Cameras and acute ground-based followup have led to the detection of a decaying afterglow in X rays and optical light following the classical gamma-ray burst GRB 970228. The afterglow in X rays and optical light fades as a power law at all wavelengths. This behaviour was predicted for a relativistic blast wave that radiates its energy when it decelerates by ploughing into the surrounding medium. Because the afterglow has continued with unchanged behaviour for more than a month, its total energy must be of order 10**51 erg, placing it firmly at a redshift of order 1. Further tests of the model are discussed, some of which can be done with available data, and implications for future observing strategies are pointed out. We discuss how the afterglow can provide a probe for the nature of the burst sources.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Systematic Error in Approximate Models of the GRB Early Afterglow

    astro-ph.HE 2026-06 unverdicted novelty 6.0 of 10

    High-resolution simulations demonstrate that two-zone models for GRB early afterglows fail to match hydrodynamic evolution in the Newtonian reverse shock regime before Blandford-McKee self-similarity, causing systemat...

  2. Short-duration gamma-ray bursts from Kerr-Newman black hole mergers

    astro-ph.HE 2024-11 reject novelty 4.0 of 10

    A Kerr-Newman black hole produced by a binary black hole merger, with a magnetized disk, can power a short gamma-ray burst via the Blandford-Znajek mechanism, and the model is applied to GW150914.

  3. Gamma-ray bursts: what do we know today that we did not know 10 years ago?

    astro-ph.HE 2024-12 unverdicted

    A review of the past decade of gamma-ray burst research, highlighting structured jets, GR-MHD simulations, TeV detections, and the contested idea that many GRBs have moderate Lorentz factors.

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