Insight into the Origin of Cometary Ices from Rosetta/ROSINA Mass Spectrometer Data

Rubin, Martin (2023). Insight into the Origin of Cometary Ices from Rosetta/ROSINA Mass Spectrometer Data. In: European Conference on Laboratory Astrophysics ECLA2020. Astrophysics and Space Science Proceedings: Vol. 59 (pp. 259-269). Cham: Springer 10.1007/978-3-031-29003-9_30

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Here we review some of the major findings of the mass spectrometer suite ROSINA on board of ESA’s Rosetta spacecraft to comet 67P/Churyumov-Gerasimenko. For more than 2 years, ROSINA continuously measured the composition of the gases sublimating from the comet’s nucleus. ROSINA measurements provided insight into the origin of the ices in 67P/Churyumov-Gerasimenko. The obtained molecular, elemental, and isotope abundances revealed a composition more complex than previously known. Furthermore, a subset of these measurements indicate that a substantial fraction of the molecules incorporated into the comet predate the formation of the solar system.

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