Thanks to coronograph adaptive optics observations we could detect the disk surrounding the PMS star HD 100546. This detection of a disk which is believed to represent a class of precursors to Pic-like disks adds a new clue in the understanding of the formation and evolution of these debris disks. Other imaging observations of disks at various stage of evolution are necessary to sketch more closely the possible scenario of such a disk creation and evolution. This should be achieved by next generation instruments such as the VLT/NAOS (adaptive optics) and VLT/VISIR (mid-infrared) instruments or the NGST.
© European Southern Observatory (ESO) 2000
Online publication: September 5, 2000