Water alteration on (42355) Typhon

The visible spectra of (42355) Typhon showed evidence for aqueously altered materials. Therefore we seek to understand if such an event is possible.We use data from the ESO / Very Large Telescope together with the Hapke Hapke radiative transfer model to interpret the surface composition of (42355) Typhon over the whole spectral range (~ 0.5 — 2.4 ym).Our results points that (42355) Typhon could be a fragment from a larger parent body that suffered aqueous alteration.