Hydrodynamical acceleration of particles in supernovae and extragalactic radio sources

Details Hydrodynamical acceleration of particles in supernovae and extragalactic radio sources Hydrodynamical acceleration of particles in supernovae and extragalactic radio sources

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aipc...56..295s&link_type=abstract

In: Particle acceleration mechanisms in astrophysics; Proceedings of the Workshop, La Jolla, Calif., January 3-5, 1979. (A80-532

Astronomy and Astrophysics

Astrophysics

1

Cosmic Rays, Extragalactic Radio Sources, Magnetohydrodynamic Waves, Particle Acceleration, Shock Wave Interaction, Supernovae, Astronomical Models, Flow Velocity, Gas Dynamics, Relativistic Particles, Shock Wave Propagation, Two Dimensional Flow

Scientific paper

The acceleration of cosmic particles to relativistic energies as the result of the propagation of relativistic, hydrodynamical shocks is reviewed. The supernova-shock model of Colgate and Johnson for acceleration of cosmic-ray nuclei is described and assessed, with emphasis on the underlying hydrodynamics. Evidence for relativistic blast waves in compact radio sources is reviewed, and the models calculated are described. These models lead naturally to a consideration of nonspherical relativistic blast waves which are both accelerated and focused by the ambient gas distribution. Recent work is described which extends the spherically symmetric, ultrarelativistic solutions found to cases involving arbitrarily relativistic shocks in an axisymmetric density profile. The development of an Eulerian numerical scheme for special-relativistic hydrodynamics is discussed.

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