Advertisement

Ultra-relativistic Plasma Shell Collisions in Pulsar Magnetospheres and γ-ray Bursts

  • Claus H. Jaroschek
  • Christoph Nodes
  • Rüdiger Schopper
  • Hartmut Ruhl
  • Harald Lesch
Conference paper

Abstract

Non-linear highly energetic plasma phenomena play a key-role in the understanding of astrophysical objects. We present plasma scenarios that provide a valid description for coherent radiation emission features observed from pulsar magnetospheres and for the self-consistent magnetic field generation essential for γ-ray burst synchrotron models. For this purpose we study ultra-relativistic plasma shell collisions with ensembles of up to 109 particles. We introduce the framework of the Particle-In-Cell (PIC) approach, details of the numerical realization and performance issues on the IBM REGATTA system of the Rechenzentrum Garching and the HITACHI supercomputer of the Leibniz Rechenzentrum. A final overview on simulation results and future perspectives closes the contribution.

Keywords

Neutron Star Weibel Instability Pulsar Magnetosphere Relativistic Collision Energy Free Electron Maser 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Birdsall, C.K., Langdon, A.B.: Plasma Physics via Computer Simulation. IOP Publishing Ltd, Bristol (2000)Google Scholar
  2. 2.
    Hockney, R.W., Eastwood, J.W.: Computer simulation using particles. IOP Publishing Ltd, Bristol (1988)Google Scholar
  3. 3.
    McCormick, S.F. (ed.): Theory, Applications, and Supercomputing. Marcel Dekker, New York (1988)Google Scholar
  4. 4.
    Schopper, R., Nodes, C., Ruhl, H., Lesch, H.: The free electron maser in pulsar magnetospheres. In: Wagner, S., Hanke, W., Bode, A., Durst, F. (eds) High Performance Computing in Science and Engineering, Munich 2002. Springer, Berlin Heidelberg New York (2002)Google Scholar
  5. 5.
    Jaroschek, C.H., Treumann, R.A., Lesch, H., & Scholer, M.: Fast magnetic reconnection in relativistic pair plasmas: Analysis of particle acceleration in self-consistent Full Particle Simulations, Phys. Plasmas, 11, 1151–1163 (2004)CrossRefGoogle Scholar
  6. 6.
    Jaroschek, C.H., Lesch, H., & Treumann, R.A.: Ultra-relativistic plasma shell collisions in γ-ray burst sources: Dimensional effects on the final steady-state magnetic field, Astrophys. J., submittedGoogle Scholar
  7. 7.
    Hankins, T.H., Kern, J.S., Weatherall, J.C., & Eilek: Nanosecond radio bursts from strong plasma turbulence in the Crab pulsar, Nature, 422, 141–143 (2003)CrossRefGoogle Scholar
  8. 8.
    Piran, T.: Gamma-ray bursts and the fireball model, Phys. Reports, 314, 575–667 (1999)CrossRefGoogle Scholar
  9. 9.
    Weatherall, J.C., Benford, G.: Coherent radiation from energetic electron streams via collisionless bremsstrahlung in strong plasma turbulence, Astrophys. J., 378, 543–549 (1991)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Claus H. Jaroschek
    • 1
    • 2
  • Christoph Nodes
    • 2
  • Rüdiger Schopper
    • 1
    • 2
  • Hartmut Ruhl
    • 3
  • Harald Lesch
    • 2
  1. 1.Max-Planck-Institut für extraterrestrische Physik GießenbachstraßeGarchingGermany
  2. 2.Universitäts-Sternwarte MünchenMünchenGermany
  3. 3.General AtomicsSan DiegoUSA

Personalised recommendations