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The reversal of the rotational modulation rates of the north and south components of Saturn kilometric radiation near equinox
Gurnett, D. A.; Persoon, A. M.; Kurth, W. S. +5 more
It has been known for many years that Saturn emits intense radio emissions at kilometer wavelengths and that this radiation is modulated by the rotation of the planet at a rate that varies slowly on time scales of years. Recently it has been shown that the radio emission consists of two components that have different rotational modulation rates, o…
Oxygen flux in the solar wind: Ulysses observations
Zurbuchen, Thomas H.; von Steiger, Rudolf; McComas, David J.
We use the complete set of Ulysses solar wind data to conduct a comprehensive determination of the oxygen flux in relation to the proton flux in the solar wind during a wide range of solar activity levels. The data cover the heliosphere between 1.3 and 5.4 AU and, due to the unique orbit of Ulysses, all of the heliographic latitudes within ±80°. W…
First results from the Venetia Burney Student Dust Counter on the New Horizons mission
James, David; Horányi, Mihály; Poppe, Andrew +1 more
The Venetia Burney Student Dust Counter (SDC) onboard the New Horizons mission is an impact-based dust detector designed to map the size and spatial variability of the interplanetary dust population throughout the solar system. SDC consists of fourteen permanently polarized polyvinylidene fluoride detectors that register a charge upon impact by hy…
Differences in solar wind cross-helicity and residual energy during the last two solar minima
Perri, S.; Balogh, A.
The minimum of solar cycle 23 exhibited anomalous characteristics with respect to its predecessors. Other than the differences in the standard indicators of activity, such as sunspots, polar magnetic fields were also found to be different. These differences had a range of effects in the solar wind. In this work we study the Alfvénicity and the res…