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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 19, issue 7
Ann. Geophys., 19, 681–686, 2001
https://doi.org/10.5194/angeo-19-681-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 19, 681–686, 2001
https://doi.org/10.5194/angeo-19-681-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.

  31 Jul 2001

31 Jul 2001

Driven reconnection and bursty bulk flows

B. P. Pandey1 and G. S. Lakhina2 B. P. Pandey and G. S. Lakhina
  • 1Centre for Plasma Astrophysics, K. U. Leuven, Celestijnenlaan 200B, 3001 Heverlee, Belgium
  • 2Indian Institute of Geomagnetism, Bombay 400 005, India

Abstract. The energetics of driven magnetic reconnections induced by the deformation of the magnetopause boundary due to the solar wind-magnetosphere interaction are studied. The bursty type reconnection ensues due to the forcing of the magnetopause boundary by the solar wind. For typical plasma parameters in the inner central plasma sheet (ICPS), the magnetic energy release during the reconnection is estimated and it is found that the available free energy is comparable to the observed kinetic energy of typical bursty bulk flows. It implies that the part of the free energy goes into the heating of the ICPS particles, whereas the rest goes into its acceleration. The accelerated particle manifests itself as bursty flows.

Key words. Magnetospheric physics (magnetotail; storms and substorms)

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