Hydrodynamical study of internal shocks in a relativistic wind

Details Hydrodynamical study of internal shocks in a relativistic wind Hydrodynamical study of internal shocks in a relativistic wind

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aipc..428..677d&link_type=abstract

Fourth Huntsville gamma-ray burst symposium. AIP Conference Proceedings, Volume 428, pp. 677-681 (1998).

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1

Hydrodynamics, Gamma-Ray Sources, Gamma-Ray Bursts

Scientific paper

In the context of internal shock models for GRBs a 1D lagrangian hydrocode has been developed to follow the evolution of a relativistic wind with a very inhomogeneous distribution of the Lorentz factor. We suppose that the energy dissipated in the internal shocks which form in the wind is efficiently radiated so that the shocks can be considered as quasi-isothermal. We present the first results obtained with this code. They are compared to a simple model where all pressure waves are suppressed in the wind so that layers with different velocities only interact by direct collisions.

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