Foreshock and magnetosheath waves at Uranus and Neptune studied with wavelet analysis

Details Foreshock and magnetosheath waves at Uranus and Neptune studied with wavelet analysis Foreshock and magnetosheath waves at Uranus and Neptune studied with wavelet analysis

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009adspr..44.1030e&link_type=abstract

Advances in Space Research, Volume 44, Issue 9, p. 1030-1037.

Physics

Scientific paper

Foreshock and magnetosheath waves in Uranus and Neptune magnetospheres are studied in this work with wavelet analysis. In order to conduct this study, Voyager-2 magnetometer 3-s averaged data are used. The Morlet wavelet transform is applied to the magnetic field vector data. Waves present in the magnetosheath and foreshock regions are highly non-stationary, showing large amplitude variations. It was found that the dominant periods of these waves are longer than the H+ cyclotron period. Overall, high frequency waves are seen near the bow shock crossing and low frequency oscillations near the magnetopause crossing. It can be concluded that non-stationary foreshock and magnetosheath planetary waves can be well characterized with wavelet analysis.

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