This graphic has three parts. To the left, an image of the visible surface of a planet is divided into two halves that are shown in two different wavelengths. This results in a blue-colored and a red-colored half-circle, joined together. In the middle there is a digram where intensity is drawn as a function of velocity, resulting in a line profile, that is, a sharp decline and rise of the curve. To the right, the image shows a partial view of planet Jupiter, one of Jupiters moons, and a spacecraft in the Jupiter system.

Planetary Atmospheres

The group „Planetary Atmospheres“ investigates atmospheres of bodies in the Solar System and beyond.

This includes planets and their satellites, comets, outgassing minor planets and other potentially active bodies in our Solar System. The structure, dynamics, and chemistry of these bodies’ atmospheres are modeled using general circulation models for mars, Saturn, and Jupiter, and hydrodynamic and kinetic models for satellites, comets, and other active bodies. The latter include modelling interactions between the body’s surface and atmosphere as well as interactions with space. In addition, the group develops and builds instruments for space mission, that observe these objects in the wavelength range from centimeters to micrometers (microwave, submillimeter and far infrared), mostly using heterodyne spectroscopy techniques developed in the department’s microwave laboratory. From these data, geophysical information such as 3d profiles of atmospheric composition, temperatures, and winds can be derived.


Scientific data analysis models for SWI onboard the JUICE mission to Jupiter

Understanding the JUICE/SWI instrument characteristics and the radiation intensity that the SWI instrument will receive from Jupiter’s icy moons more

Venus: Carbon Ions during Flyby

Carbon ions are escaping into space from the atmosphere of Venus. New measurements by BepiColombo confirm a long-held suspicion. more

A taste of solar wind and a glimpse of Earth

The MPS instruments on board ESA’s JUICE spacecraft have successfully completed their commissioning in space - and delivered their first observational data. more

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