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Bumps in the optical afterglow of GRB 030329: Refreshed shocks and evidence for internal shocks in GRBs?

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The afterglow of GRB 030329 presents a high variability, made of approximately constant duration bumps, which we explain by a series of late energy injections from slow shells (refreshed shocks). We model the GRB 030329 afterglow assuming that the central source first emits rapid material (Γ ∼ 100) immediately followed by slower one (Γ ∼ 10), which can catch up with the rapid material when it has been decelerated by the external medium. We fit the afterglow lightcurve, and extract from this fit some evidence that internal shocks must have occurred previously in the ejecta.

Original languageEnglish
Title of host publicationGAMMA-RAY BURSTS IN THE SWIFT ERA
Subtitle of host publicationSixteenth Maryland Astrophysics Conference
Pages353-356
Number of pages4
DOIs
Publication statusPublished - 19 May 2006
Externally publishedYes
EventGAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference - Washington, D.C., United States
Duration: 29 Nov 20052 Dec 2005

Publication series

NameAIP Conference Proceedings
Volume836
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceGAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference
Country/TerritoryUnited States
CityWashington, D.C.
Period29/11/052/12/05

Keywords

  • Gamma-ray bursts
  • Shock waves

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