Dust-to-Gas and Refractory-to-Ice Mass Ratios of Comet 67P/Churyumov-Gerasimenko from Rosetta Observations

• DOI: 10.1007/s11214-020-00662-1
• Publication Date: 2020-04-08T08:03:56Z
• Authors: Mathieu Choukroun; Kathrin Altwegg; Ekkehard Kührt; Nicolas Biver; Dominique Bockelé...; Joanna Drążkowska; Alain Hérique; Martin Hilchenbach; Raphael Marschall; Martin Pätzold; Matthew G. G. T. ...; Nicolas Thomas
• Keywords: Refractory (planetary science); Mass ratio

Abstract This chapter reviews the estimates of dust-to-gas and refractory-to-ice mass ratios derived from Rosetta measurements in lost materials nucleus 67P/Churyumov-Gerasimenko, respectively. First, by instruments are described, as well relevant characteristics 67P. The complex picture activity 67P, with its extreme North-South seasonal asymmetry, is presented. Individual then presented compared, showing wide ranges plausible values. ’s wealth information suggests that ratio made cometary comae at a single point time may not be fully representative within nuclei being observed.