Abstract:
We have selected several stars with far-IR (IRAS)fluxes indicating the presence of circumstellar dust shells and disks. In this paper we present an analysis of the spectra of these stars. In several of these stars we find evidence for gaseous envelopes in addition to dusty disks. In some of these stars we find complex and variable H alpha profiles indicating the variations in the circumstellar envelopes and disks.
