[Todos] IAFE -COLOQUIOS: "Ion irradiation induced effects on airless bodies in th e Solar System ", Miércoles 02/11 a las 15:00 hs

[difusion en iafe.uba.ar]

                   PRÓXIMO COLOQUIO DEL IAFE
                 Instituto de Astronomía y Física del Espacio
                           CONICET-UBA
 _________________________________________________________________________

 "Ion irradiation induced effects on airless bodies in the Solar System"

                       Giovanni Strazzulla
  INAF-Osservatorio Astrofisico, Via s. Sofia 78 95123 Catania, Italy
   (gianni en oact.inaf.it)

                     Miércoles 02/11 a las 15:00 hs
                      Aula del Edificio IAFE



Abstract: Solid surfaces in the Solar System are made of refractories
silicates/carbons) and/or frozen gases (ices) and are continuously
modified by several processes among which ion irradiation plays a
relevant role. The study of the induced effects in different
environments (often referred to as space weathering) has been
based on laboratory simulations. Among many studied effects there are
sputtering, ion implantation, structural and morphological
alterations, and chemical synthesis of molecular species. Here I
review some experimental results with a view to their relevance in
changing the spectral color of irradiated surfaces and their chemical
alteration.