Abstract The Radio & Plasma Wave Investigation (RPWI) onboard the ESA JUpiter ICy
moons Explorer (JUICE) is described in detail. The RPWI provides an elaborate set of state …

The environment of a comet is a fascinating and unique laboratory to study plasma
processes and the formation of structures such as shocks and discontinuities from electron …

The flow direction of low-energy ions around comet 67P/Churyumov–Gerasimenko has
previously been difficult to constrain due to the influence of the spacecraft potential. The Ion …

Comets are constantly interacting with the solar wind. When the comet activity is high
enough, this leads to the creation of a magnetic field free region around the nucleus known …

Context. Sufficiently far from the Sun, all comets go through a phase of low activity. Rosetta
observations at large heliocentric distances of approximately 3 au showed that the plasma at …

The Rosetta orbiter witnessed several hundred diamagnetic cavity crossings (unmagnetized
regions) around comet 67P/Churyumov–Gerasimenko during its two year survey of the …

ABSTRACT The Ion Composition Analyzer (ICA) on the Rosetta spacecraft observed both
the solar wind and the cometary ionosphere around comet 67P/Churyumov–Gerasimenko …

Context. The plasma near the nucleus of a comet is subjected to an electric field to which a
few different sources contribute: the convective electric field of the solar wind, the ambipolar …

Abstract The European Space Agency/Rosetta mission to comet 67P/Churyumov‐
Gerasimenko has provided several hundred observations of the cometary diamagnetic …

We show that an ion‐ion cross‐field streaming instability between cold newborn cometary
ions and heated heavy ions that were picked up upstream is likely a contributing source of …