Popis: |
Knowledge of surface composition of Trans-Neptunian object (TNO) would support the understanding of the processes occurred in the solar nebula at large heliocentric distance. The most diagnostic information on the presence of ices, organics, and minerals has been obtained by the visible and near-infrared spectroscopic observations for few tens of TNOs. The largest worldwide telescopes have been dedicated to the observations of these faint and distant objects, but the determination of the TNOs’ surface composition remains technically challenging. The state of arts on the knowledge of the surface properties, the method to study the surface composition of these ice bodies and their limitation are presented. |