Structure and Formation of Comets: Updates from Post-Rosetta Solid Fraction Analyses

A. Chantal Levasseur-Regourd1, Mark Stephen Bentley2, Wlodek W Kofman3, Yann Brouet4, Valerie Ciarletti5, Edith Hadamcik6, Alain Herique7, Jeremie Lasue8, Thurid Mannel2 and Roland Schmied2, (1)UPMC (Univ. Paris) / LATMOS, Paris, France, (2)IWF Graz Institute for Space Research, Graz, Austria, (3)CNRS, Paris Cedex 16, France, (4)University of Bern, Physics Institute, Bern, Switzerland, (5)LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales, Paris Cedex 05, France, (6)LATMOS/CNRS, Pierre and Marie Curie Univ., Paris, France, (7)University Joseph Fourier Grenoble, Grenboble, France, (8)IRAP-CNRS, Univ. of Toulouse, Toulouse, France