Ejecta around B[e] stars

B[e] stars are massive B type emission line stars in different evolutionary stages ranging from pre-main sequence to post-main sequence. Due to their mass loss and ejection events of yet unknown origin, they are important cornerstones in massive star evolution. These objects deposit huge amounts of energy into their environment and enrich it with chemically processed material. Marston & McCollum (2008) published a first catalog of extended shells around B[e] stars that they discovered via an Ha imaging survey of northern objects. We are performing a follow-up of those targets to detect possible evolution of their nebulae in the plane of the sky during the past two decades. In addition, we utilize spectral observations across the nebulae to derive their physical properties. Furthermore, we extend our survey to southern targets and discovered pronounced nebula structures around a sample of objects, enlarging the catalog of B[e] stars with optical ejecta. In this talk we present results for selected objects of our project.