Separate silicate and carbonaceous solids formed from mixed atomic and molecular species diffusing in neon ice

25 Feb 2020 Rouillé Gaël 1 and 2 Jäger Cornelia 1 and 2 Henning Thomas

The formation and growth of refractory matter on pre-existing interstellar dust grain surfaces was studied experimentally by annealing neon-ice matrices in which potential precursors of silicate grains (Mg and Fe atoms, SiO and SiO$_2$ molecules) and of solid carbon (C$_n$ molecules, $n$ = 2-10) were initially isolated. Other molecules, mainly O$_3$, CO, CO$_2$, C$_3$O, and H$_2$O, were embedded at the same time in the matrices... (read more)

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  • ASTROPHYSICS OF GALAXIES
  • MATERIALS SCIENCE