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Quasi-periodic Fluctuations Detected in Mars Express Coronal Radio Sounding Observations
Pätzold, M.; Bird, M. K.; Tellmann, S. +5 more
Spectral analysis of the high-quality dual-frequency data obtained with the radio sounding experiment MaRS on the ESA spacecraft Mars Express has revealed a quasi-periodic component (QPC) at heliocentric distances from 4 to 10 solar radii. The QPC typically appears as a broad maximum in the temporal frequency fluctuation spectrum centered at a fre…
Coronal Radio Sounding Experiments with Mars Express: Scintillation Spectra during Low Solar Activity
Pätzold, M.; Bird, M. K.; Tellmann, S. +5 more
Coronal radio sounding observations were carried out with the radio science experiment MaRS on the ESA spacecraft Mars Express during the period from 25 August to 22 October 2004. Differential frequency and log-amplitude fluctuations of the dual-frequency signals were recorded during a period of low solar activity. The data are applicable to low h…