Circumstellar Disk Models: unraveling the mysteries of Be star disks

Continuing improvements in observational technologies are providing a wealth of new observations of the disk structures that 
surround B-emission (Be) stars. For example, high-resolution interferometry in the optical and the infrared now routinely 
provides information at the submilliarcsecond scales advancing our understanding of the structure and the physical conditions 
in the circumstellar regions. However, interferometric imaging still suffers from sparse (u, v) plane coverage and theoretical 
images play a critical role in interpreting the observations. There remain key unanswered questions such as what is the 
mechanism that launches the material off the star and why do some B stars form a disk and later lose it while other disk 
systems remain stable for decades? Key to continuing progress will be further development of theoretical models tightly 
constrained by observations combined with predictions that can be compared directly to observations. In this talk I will 
discuss some of the recent work and new results related to theoretical models and their predictions.