Berlin 2014 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 5: Postersitzung

EP 5.22: Poster

Dienstag, 18. März 2014, 16:30–18:30, DO24 Foyer

Rosetta/OSIRIS observations of the dust coma of comet 67P/Churyumov-Gerasimenko — •Jessica Agarwal, Jean-Baptiste Vincent, and Holger Sierks — Max-Planck-Institut für Sonnensystemforschung, Göttingen, Germany

We present our planned observations and analyses of the dust coma of comet 67P/Churyumov-Gerasimenko with the OSIRIS camera system on board the Rosetta spacecraft. Comet 67P/Churyumov-Gerasimenko is the main target of the European Space Agency’s Rosetta mission, which will reach the comet in the course of 2014, deploy a lander on its surface and follow the comet on its path towards perihelion. The Optical, Spectrocopic and Infrared Remote Imaging System (OSIRIS) on the Rosetta orbiter will take high-resolution images in multiple wavelength bands from the UV to the near-IR, which will show the nucleus surface and the near-nucleus coma in unprecedented detail. The coma images will allow us to study the activity distribution on the surface, and give us constraints for quantitative models of the comet’s dust production. We present our expected data, the scientific questions we want to address, and the envisaged strategies for data analysis.