Contribution Invited Talk
Constrains on structure and composition of the inner regions of transitional Herbig Ae star disks
Transitional disks are protoplanetary disks with large inner holes, large enough to cause a significant drop in the SED. It has recently been shown that most if not all of the sample of isolated Herbig Ae stars have clear indications for the existence of such holes. Interestingly, most of these objects still have host dust near the sublimation zone. I will discuss mechanisms for the creation of such structures, and I will evaluate constrains on the composition and structure of these regions.