Found in many terahertz (THz) and submillimeter-wave systems, GaAs Schottky diodes
continue to be one of the most useful THz devices. As a low-parasitic device that operates …

This chapter reviews the estimates of the dust-to-gas and refractory-to-ice mass ratios
derived from Rosetta measurements in the lost materials and the nucleus of 67P/Churyumov …

Abstract The Rosetta spacecraft reached Comet 67P/Churyumov-Gerasimenko (hereafter
67P/CG) in August 2014 at an heliocentric distance of 3.6 au and was then put in orbit …

The processes that led to the formation of the planetary bodies in the Solar system are still
not fully understood. Using the results obtained with the comprehensive suite of instruments …

We examine the evolution of the water production of comet 67P/Churyumov–Gerasimenko
during the Rosetta mission (2014 June–2016 May) based on in situ and remote sensing …

Context. The Rosetta mission of the European Space Agency has been orbiting the comet
67P/Churyumov-Gerasimenko (67P) since August 2014 and is now in its escort phase. A …

Context. We investigate the formation and evolution of comet nuclei and other trans-
Neptunian objects (TNOs) in the solar nebula and primordial disk prior to the giant planet …

Several sulphur-bearing species have already been observed in different families of comets.
However, the knowledge on the minor sulphur species is still limited. The comet's sulphur …

Context. The complex shape of comet 67P and its oblique rotation axis cause pronounced
seasonal effects. Irradiation and hence activity vary strongly. Aims. We investigate the …

We collect observational evidence that supports the scheme of mass transfer on the nucleus
of comet 67P/Churyumov–Gerasimenko. The obliquity of the rotation axis of 67P causes …