A ROSINA Perspective on the Organics in Comet 67P/Churyumov-Gerasimenko
Résumé
The Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) was sent onboard the Rosetta spacecraft to determine the chemical composition of comet 67P/Churyumov-Gerasimenko. The study here presented is based on data from the ROSINA-Double Focussing Mass Spectrometer (DFMS). With a high mass resolution and a high sensitivity the instrument allows an identification and quantification of the organic compounds in the coma of comet 67P. Based on a laboratory calibration campaign and space data analysis the cometary bulk abundances of several organic compounds, such as aliphatic and aromatic hydrocarbons, could be derived.