Hydrodynamics of internal shocks in relativistic outflows

M. Kino*, A. Mizuta, A. Celotti, S. Yamada

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We study the hydrodynamical effects of two colliding shells, adopted to model internal shocks in various relativistic outflows such as gamma-ray bursts and blazars. We find that the density profiles are significantly affected by the propagation of rarefaction waves. A split-feature appears at the contact discontinuity of the two shells. The shell spreading with a few ten percent of the speed of light is also shown to be a notable aspect. The conversion efficiency of the bulk kinetic energy to internal one shows deviations from the widely-used inelastic two-point-mass-collision model. Observational implications are also shortly discussed.

Original languageEnglish
Title of host publicationHigh Energy Gamma-Ray Astronomy - 2nd International Symposium on High Energy Gamma-Ray Astronomy
Number of pages6
Publication statusPublished - 2005
EventInternational Symposium on High Energy Gamma-Ray Astronomy - Heidelberg, Germany
Duration: 2004 Jul 262004 Jul 30

Publication series

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


ConferenceInternational Symposium on High Energy Gamma-Ray Astronomy

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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