Authors:
Vazquez, R; Miranda, LF; Torrelles, JM; Olguin, L; Benitez, G; Rodriguez, LF; Lopez, JA
Abstract:
We report high- and low-dispersion spectroscopy, optical imaging, and high-resolution Very Large Array-A lambda3.6 cm continuum observations of the peculiar planetary nebula IC 2149. These observations show that bipolar is a suitable morphological classification for IC 2149. Most nebular material is concentrated in a knotty, bright ring seen edge-on, embedded in an apparently oblate ellipsoidal shell from which remnant or incipient bipolar lobes emerge. We confirm the previously reported depletion in heavy elements and deduce a very low ejected nebular mass less than or similar to0.03 M.. All this information indicates that the formation of IC 2149 is the result of the evolution of a low-mass central star.
URL:
https://ui.adsabs.harvard.edu/#abs/2002ApJ...576..860V/abstract
Keywords:
ISM : kinematics and dynamics; planetary nebulae : individual (IC 2149); stars : AGB and post-AGB