Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apj...576..860v&link_type=abstract
The Astrophysical Journal, Volume 576, Issue 2, pp. 860-869.
Astronomy and Astrophysics
Astronomy
12
Ism: Kinematics And Dynamics, Ism: Planetary Nebulae: Individual: Alphanumeric: Ic 2149, Stars: Agb And Post-Agb
Scientific paper
We report high- and low-dispersion spectroscopy, optical imaging, and high-resolution Very Large Array-A λ3.6 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 <~0.03 Msolar. All this information indicates that the formation of IC 2149 is the result of the evolution of a low-mass central star.
Benitez G.
Lopez Jose Alberto
Miranda Luis F.
Olguín Lorenzo
Rodriguez Luis F.
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