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refreshed shocks from a γ-ray burst

Author

Listed:
  • Jonathan Granot

    (Institute for Advanced Study)

  • Ehud Nakar

    (Racah Institute for Physics, The Hebrew University)

  • Tsvi Piran

    (Racah Institute for Physics, The Hebrew University)

Abstract

In addition to its remarkable supernova signature1,2, the γ-ray burst of 29 March 2003 (GRB030329) had two interesting peculiarities: an unusually low-energy output in γ-rays and a large bump in its afterglow light curve after 1–2 days (followed by several less significant rebrightening episodes). We suggest that refreshed shocks — slow shells ejected from the source that catch up with the afterglow shock a relatively long time after the initial burst — produced the observed fluctuations in the early afterglow light curve and explain the low-energy output at early times.

Suggested Citation

  • Jonathan Granot & Ehud Nakar & Tsvi Piran, 2003. "refreshed shocks from a γ-ray burst," Nature, Nature, vol. 426(6963), pages 138-139, November.
    • Handle: RePEc:nat:nature:v:426:y:2003:i:6963:d:10.1038_426138a
    DOI: 10.1038/426138a
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