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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 23, issue 8 | Copyright

Special issue: Double Star - First Results

Ann. Geophys., 23, 2909-2914, 2005
https://doi.org/10.5194/angeo-23-2909-2005
© Author(s) 2005. This work is distributed under
the Creative Commons Attribution 3.0 License.

  08 Nov 2005

08 Nov 2005

Double Star/Cluster observation of neutral sheet oscillations on 5 August 2004

T. L. Zhang4,1, R. Nakamura1, M. Volwerk1,6, A. Runov1, W. Baumjohann1, H. U. Eichelberger1, C. Carr2, A. Balogh2, V. Sergeev3, J. K. Shi4, and K.-H. Fornacon5 T. L. Zhang et al.
  • 1Space Research Institute, Austrian Academy of Sciences, 8042 Graz, Austria
  • 2Imperial College, London, UK
  • 3St. Petersburg University, Russia
  • 4Laboratory for Space Weather, Chinese Academy of Sciences, Beijing, China
  • 5Institut für Geophysik und extraterrestrische Physik, Braunschweig, Germany
  • 6Max-Planck Institut für extraterrestrische Physik, Garching, Germany

Abstract. Previous Cluster observations have shown that the flapping motions of the Earth's magnetotail are of internal origin and that kink-like waves are emitted from the central part of the tail and propagate toward the tail flanks. The newly launched Double Star Program (DSP) TC-1 satellite allows us to investigate neutral sheet at 10-13 Re in the tail. Using conjunctions with Cluster we will have simultaneous observations at 10-13 and 16-19 Re of these flapping motions. In this paper, we present the first results of neutral sheet oscillations observed by the Cluster and Double Star satellites on 5 August 2004.

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