Morphology and kinematics of Planetary Nebulae II: A Diabolo model for NGC 3132

摘要

We use a 3D photoionization modeling tool to study the morpho-kinematicproperties of the Planetary Nebula (PN) NGC 3132. We show that it is possibleto reproduce the low resolution observations (spectra and images) with anellipsoidal shell. However, high resolution observations, as those showing adensity variation along the nebula and the [O III]5007 velocity profiles,definitively rule out this description. We show that a bipolar Diabolo shapewith a 40 degres rotation of the symmetry axis relative to the line of sightsuccessfully reproduces the observed images, as well as the high resolutionobservations.