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Volume 53 Supplement 6

Special Issue: Magnetic Reconnection in Space and Laboratory Plasmas

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Fast compression of a current sheet during externally driven magnetic reconnection

Earth, Planets and Space volume 53, pages 521–526 (2001)Cite this article

Abstract

Magnetic reconnection of two toroidal plasmas with arbitrary q values revealed a dependence of sheet-current dissipation and ion heating on ion-gyromotion. Effective sheet-current resistivity was found to increase significantly, when an external force compressed the current sheet shorter than the ion-gyroradius, and both the reconnection speed and ion temperature increased with decreasing current sheet width and with increasing ion-gyroradius.

References

  • Balandin, A. et al., Design study of 3-D tomography diagnostics for spherical tokamaks, Eur. Phys. J., D14, 97–103, 2001.

    Google Scholar 

  • Biskamp, D., Magnetic reconnection via current sheets, Phys. Fluids, 29, 1520–1531, 1986.

    Article  Google Scholar 

  • Gekelman, W. and H. Pfister, Experimental observations of the tearing of an electron current sheet, Phys. Fluids, 31, 2017–2025, 1988.

    Article  Google Scholar 

  • Horiuchi, R. and T. Sato, Particle simulation study of collisionless driven reconnection in a sheared magnetic field, Phys. Plasmas, 4, 277–289, 1997.

    Article  Google Scholar 

  • Inomoto, M. et al., Mechanism of fast reconnection in TS-3 plasma merging experiment, in Proc. MR2000, p. 23, Univ. Tokyo, Japan, Mar., 2000.

  • Ji, H. et al., Experimental test of the Sweet-Parker model of magnetic reconnection, Phys. Rev. Lett., 80, 3256–3259, 1998.

    Article  Google Scholar 

  • Leboeuf, J. N., T. Tajima, and J. M. Dawson, Dynamic magnetic X-point, Phys. Fluids, 25, 784–798, 1982.

    Article  Google Scholar 

  • Morita, A. et al., Tomotraphic reconstruction algorithm for an annular cross section of toroidal plasmas by use of modified Fourier-Bessel expansions, Trans. Inst. Electr. Eng. Japan, 115, 37–43, 1995.

    Google Scholar 

  • Murata, Y. et al., Bulletin of American Physical Society 45, 7, YP1 53, 2000.

  • Ono, Y., A. Morita, M. Katsurai et al., Experimental investigation of three-dimentional magnetic reconnection by use of two colliding spheromaks, Phys. Fluids, B5, 3691–3701, 1993.

    Article  Google Scholar 

  • Ono, Y., et al., Ion acceleration and direct ion heating in three-component magnetic reconnection, Phys. Rev. Lett., 86, 3328–3331, 1996.

    Article  Google Scholar 

  • Parker, E. N., Mechanism for merging magnetic fields in conducting fluids, J. Geophys. Res., 62, 509–520, 1957.

    Article  Google Scholar 

  • Saito, Y., et al., Slow-mode shocks in magnetotail, J. Geophys. Res., 100, 23567–23581, 1995.

    Article  Google Scholar 

  • Sato, T. and T. Hayashi, Exterally driven reconnection and a powerful magnetic energy converter, Phys. Fluids, 22, 1189–1202, 1979.

    Article  Google Scholar 

  • Sato, T., T. Hayashi, K. Watanabe et al., Role of compressibility on driven magnetic reconnection, Phys. Fluids B, B4, 450–457, 1992.

    Article  Google Scholar 

  • Scime, E. et al., Ion heating and magnetohydrodynamic fluctuations in the reversed-field pinch, Phys. Fluids, 4, 4062–4071, 1992.

    Article  Google Scholar 

  • Shay, M. A. et al., Structure of the dissipation region during collisionless magnetic reconnection, J. Geophys. Res., 103, 9165–9176, 1998.

    Article  Google Scholar 

  • Shimizu, T., S. Tsuneta, and A. C. Acton, Morphology of active region transient brightenings with the YOHKOH soft X-ray telescope, Astrophys. J., 422, 906–911, 1994.

    Article  Google Scholar 

  • Stenzel, R. et al., Magneticfield line reconnection experiments4. resistivity, heating and energy flow, J. Geophys. Res., 87, 111–117, 1982.

    Article  Google Scholar 

  • Sweet, P. A., The neutral point theory of solar flares, in Electromagnetic Phenomena in Cosmical Physics, edited by B. Larnert, p.123, Cambridge, New York, 1953.

    Google Scholar 

  • Tajima, T. and J.-I. Sakai, Explosive coalescence of magnetic islands and acceleration of changed particles, Sov. J. Plasma Phys., 15, 519–525, 1989.

    Google Scholar 

  • Treumann, R. A. and W. Baumjohann, Advanced Space Plasma Physics, Imperial College Press, 1997.

    Book  Google Scholar 

  • Tsuneta, S., Interacting active regions in the solar corona, Astrophys. J., 456, L63–L65, 1996.

    Google Scholar 

  • Ugai, M., Computer studies on development of the fast reconnection mechanism for different resistivity model, Phys. Fluids, B4, 2953–2963, 1992.

    Article  Google Scholar 

  • Ugai, M., Computer studies on fast reconnection mechanism under an externally driven boundary condition, Phys. Plasmas, 1, 2853–2863, 1994.

    Article  Google Scholar 

  • Yamada, M., et al., Identification of Y-shaped and O-shaped diffusion regions during magnetic reconnection in a laboratory plasma, Phys. Rev. Lett., 78, 3117–3120, 1997.

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. High Temperature Plasma Center, University of Tokyo, Tokyo, 113-8656, Japan

    Y. Ono, M. Inomoto, Y. Ueda, T. Matsuyama & Y. Murata

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  1. Y. Ono
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  2. M. Inomoto
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  3. Y. Ueda
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  4. T. Matsuyama
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  5. Y. Murata
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Correspondence to Y. Ono.

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Ono, Y., Inomoto, M., Ueda, Y. et al. Fast compression of a current sheet during externally driven magnetic reconnection. Earth Planet Sp 53, 521–526 (2001). https://doi.org/10.1186/BF03353264

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  • DOI: https://doi.org/10.1186/BF03353264

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