The Riemann problem is an initial value problem in which one often considers the evolution of a system which has discontinuous initial conditions. In ideal gasdynamics, the problem is well understood. Here we consider the Riemann problem in the presence of cosmic rays. Although the effect of cosmic rays on shock waves is reasonably well understood in the hydrodynamic approximation, the cosmic ray Riemann problem has not been studied in any detail. This problem is particularly important when considering the effect of cosmic rays on the termination shock and heliopause, and the interaction of supernovae shocks with progenitor stellar wind termination shocks.
|Title of host publication||Proceedings of the 26th International Cosmic Ray Conference. August 17-25, 1999. Salt Lake City, Utah, USA. Under the auspices of the International Union of Pure and Applied Physics (IUPAP). Volume 6. Edited by D. Kieda, M. Salamon, and B. Dingus|
|Publication status||Published - 1999|