GALAND , Marina

The Rosetta spacecraft rendezvoused with comet 67P/Churyumov-Gerasimenko in August 2014 and escorted it for two years until September 2016. The plasma surrounding the comet was probed by the Rosetta Plasma Consortium (RPC), comprising five instruments. The Langmuir Probe (RPC/LAP; Engelhardt et al., 2018) and Mutual Impedance Probe (RPC/MIP;...

The Rosetta Mission rendezvoused with comet 67P/Churyumov-Gerasimenko in August 2014 and escorted it for two years along its orbit. The Rosetta Plasma Consortium (RPC) was a suite of instruments, which observed the plasma environment at the spacecraft throughout the escort phase. The Mutual Impedance Probe (RPC/MIP; Wattieaux et al, 2020; Gilet...

The plasma instruments, Mutual Impedance Probe (MIP) and Langmuir Probe (LAP), part of the Rosetta Plasma Consortium (RPC), onboard the Rosetta mission to comet 67P revealed a population of cold electrons (<1eV) (Engelhardt et al., 2018; Wattieaux et al, 2020; Gilet et al., 2020). This population is primarily generated by cooling warm (~10eV)...

The ESA Rosetta mission escorted comet 67P for a two-year section of its six-year orbit around the Sun. By perihelion in August 2015, the neutral and plasma data obtained by the spacecraft instruments showed that the comet had transitioned to a dynamic object with large scale plasma structures and a rich ion environment. One such plasma...

Comets are small icy bodies originating from the outer solar system that produce an increasingly dense gas coma through sublimation as they approach perihelion. Photoionisation of this gas results in a cometary ionosphere, which interacts with the impinging solar wind, leading to large scale plasma structures. One such structure is the...

We study the evolution of a cometary ionosphere, using approximately two years of plasma measurements by the Mutual Impedance Probe on board the Rosetta spacecraft monitoring comet 67P/Churyumov-Gerasimenko (67P) during August 2014-September 2016. The in situ plasma density measurements are utilized to estimate the altitude-integrated electron...

The European Space Agency Rosetta mission escorted comet 67P/Churyumov-Gerasimenko for two years, during which it acquired an extensive dataset, revealing unprecedented detail about the neutral and plasma environment of the coma. The measurements were made over a large range of heliocentric distances, and therefore of outgassing activities, as...

The Rosetta spacecraft escorted comet 67P/Churyumov-Gerasimenko for two years along its orbit, from Aug 2014 to Sep 2016, observing the evolution of the comet from a close perspective. The Rosetta Plasma Consortium (RPC) monitored the plasma environment at the spacecraft throughout the escort phase.Cometary electrons are produced by ionization...