The Acceleration of the Nebular Shells in Planetary Nebulae in the Milky Way Bulge

Michael G. Richer, Jose Alberto Lopez, Margarita Pereyra +3

We present a systematic study of line widths in the [\ion{O}{3}]$\lambda$5007 and H$\alpha$ lines for a sample of 86 planetary nebulae in the Milky Way bulge based upon spectroscopy obtained…