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Prog. Theor. Phys. Supplement No.138 (2000) pp. 638-641

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Astrophysical Jets Treated as Experiment in the Cyber Space Laboratory

Y. Uchida, S. Hirose, M. Nakamura, T. Miyagoshi, S. Uemura and T. Kobayashi

Physics Department, Science University of Tokyo, Tokyo 162, Japan

(Received November 30, 1999)

Abstract:

Cyber space experiment, utilizing a combined system of fast computer plus 3D visualization system proves to be a powerful approach especially in non-linear astrophysical magnetohydrodynamic problems, among others. This is because (a) problems in extreme situations in astronomy, with which the active experiment was thus-far impossible, can now be taken into the experimental set up in the Cyber space, and some active experiments can be made, (b) experimental approach is useful for non-linear problems that develop often beyond human expectations, (c) the present day computer simulation technique can deal with non-linear equation systems to a satisfactory level, and (d) the results of simulations in 3D require analyses using good 3D visualization tools.
We have treated some of the problems of astronomical magnetohydrodynamics which gives the basis for active phenomena like flares and jets that have been revealed by radio and X-ray astronomy. We here discuss the astrophysical jet problem as an example.


URL : http://ptp.ipap.jp/link?PTPS/138/638/
DOI : 10.1143/PTPS.138.638

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References:

  1. Y. Uchida, M. Nakamura, S. Hirose and S. Uemura, Astrophys. Space Sci. 264 (1999), in press.
  2. Y. Uchida, M. Nakamura, t. Kobayashi, T. Miyagoshi and S. Hirose, in Highly Energetic Physical Processes in Astrophysical Plasmas, ed. P. Martens and S. Tsuruta (IAU Symp. 195), in press.