Methanol ice on Kuiper Belt objects 2007 OR10 and Salacia: Implications for formation and dynamical evolution
Kuiper Belt Objects (KBOs) provide the key to understanding how the Solar System formed and evolved. These objects fall into a small handful of different orbital classes that inform us about the period of planetary migration and their surface compositions provide insight into the initial chemical make-up of the solar nebula. We used near-infrared spectra to study the surface compositions of two KBOs from distinct orbital classes: 2007 OR10 and Salacia. 2007 OR10 is dark and red while Salacia is dark and grey, yet both appear to have methanol ice on their surfaces. Irradiation of methanol produces bright red materials, so the surface properties of both KBOs are somewhat surprising. Our results indicate that there is still much to learn about the formation and evolution of KBOs early in Solar System history.
European Planetary Science Congress
- Pub Date:
- September 2017