The Conical Outflow of NGC 7026, a Multipolar Planetary Nebula
Abstract
We use the 3-dimensional visualization and kinematic program, Shape, together with high-resolution spectra and detailed HST images to study the complex planetary nebula (PN) NGC 7026. The spectra were acquired using the Manchester Echelle Spectrometer at San Pedro Martir Observatory in Baja California, Mexico. This PN displays remarkable symmetry consisting of three pairs of lobes and four sets of knots, all symmetrical about the nucleus and exhibiting a conical outflow. We also investigate the relationship between the 3-D structure and extended X-ray emission using recently acquired XMM-Newton observations from the literature. The X-ray emission is predominantly confined to the closed, northern lobes of this PN and also shows an abrupt termination in the middle of the SE lobe, which our long slit data shows to be open. Here is where the shocked, fast wind appears to be escaping the interior of the nebula and the X-ray emission cools rapidly in this region.
- Publication:
-
American Astronomical Society Meeting Abstracts #221
- Pub Date:
- January 2013
- Bibcode:
- 2013AAS...22124912C