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Analysis of wave number spectra through the terrestrial bow shock

Narita, Y., K.-H. Glassmeier, S. P. Gary, M. L. Goldstein, and R. A. Treumann (2008), Analysis of wave number spectra through the terrestrial bow shock, Journal of Geophysical Research Space Physics, 113, doi:10.1029/, in press.

Abstract
Evolution of the magnetic field fluctuations of the solar wind
across the Earth’s bow shock is studied. Using the four Cluster spacecraft
the energy spectra of the magnetic field fluctuations are decomposed into three
distinct components in the wave number domain: two-dimensional component,
Alfv´enic component, and compressible component. The spectral decomposition
provides a means to study how the shock-turbulence interaction
occurs in the collisionless plasma. The two-dimensional component is
a major contributor in the fluctuation energy throughout from the solar wind
to the foreshock, the magnetosheath, and the cusp region. The solar wind
exhibits the dominance of the two-dimensional component and its wave number
spectrum is characterized by a power law with the index close to -5/3.
The transition of the solar wind across the shock is characterized not only
by amplification of the fluctuations but also by reconfiguration of the energy
contributions of the three components. The foreshock and the magnetosheath
exhibit enhancements of the Alfv´enic and the compressible components, respectively.
The reconfiguration of the energy contribution can be interpreted
in such a way that the solar wind turbulence is modified by the waves that
are locally excited by the shock-reflected ions or directly by the shock.
BibTeX
@article{id1306,
  author = {Y. Narita and K.-H. Glassmeier and S. P. Gary and M. L. Goldstein and R. A. Treumann},
  journal = {Journal of Geophysical Research Space Physics},
  note = {in press},
  title = {{Analysis of wave number spectra through the terrestrial bow shock}},
  volume = {113},
  year = {2008},
  doi = {10.1029/},
}
EndNote
%0 Journal Article
%A Narita, Y.
%A Glassmeier, K.-H.
%A Gary, S. P.
%A Goldstein, M. L.
%A Treumann, R. A.
%D 2008
%V 113
%J Journal of Geophysical Research Space Physics
%T Analysis of wave number spectra through the terrestrial bow shock
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Printed 20. Aug 2019 19:11