Do Two-Temperature Debris Disks Have Multiple Belts? - Kennedy & Wyatt 2014
Background: The
temperature of a dust grain in a debris disks depends both on the
distance from the host star and on the optical properties of that dust
grain (shape, composition, porosity, emissivity, etc). Since most debris
disks are discovered by excess emission above the photosphere and not
through direct imaging of the disk itself, it can be difficult to
discern the physical structure of the disk. It is important to determine
whether the system in question actually contains two spatially
separated disks with a gap between them or a single disk with two
different temperature grains, because a disk with a gap could be a
signature of planet formation.
