On understanding multi-instrument Rosetta data of the innermost dust and gas coma of comet 67P/Churyumov-Gerasimenko - results, strengths, and limitations of models

Marschall, Raphael; Rezac, Ladislav; Kappel, David; Marshall, David; Su, Chin-Chia; Gerig, Selina-Barbara; Pinzón Rodriguez, Olga Janeth; Liao, Ying; Rubin, Martin; Herny, Clémence Emilie Lucile; Hartogh, Paul; Kührt, Ekkehard; Mottola, Stefano; Preusker, Frank; Scholten, Frank; Jorda, Laurent; Theologou, Panagiotis; Groussin, Olivier; Dadzie, S Kokou; Christou, Chariton; ... (2018). On understanding multi-instrument Rosetta data of the innermost dust and gas coma of comet 67P/Churyumov-Gerasimenko - results, strengths, and limitations of models. In: EPSC European Planetary Science Congress. Berlin. 16. - 21. September 2018.

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Numerical models are powerful tools for understanding the connection between the emitted gas and dust from the surface of comets and the subsequent expansion into space where remote sensing instruments can perform measurements. We will present such a predictive model which can provide synthetic measurements for multiple instruments on board ESA’s Rosetta mission to comet 67P/Churyumov-Gerasimenko (hereafter 67P). We will demonstrate why a multi instrument approach is essential and how models can be used to constrain the gas and dust source distribution on the surface.

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