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http://hdl.handle.net/11154/1764
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Title: | Multiwavelength observations of the peculiar planetary nebula IC 2149 |
Authors: | Vazquez, R Miranda, LF Torrelles, JM Olguin, L Benitez, G Rodríguez, LF López, JA |
Issue Date: | 2002 |
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. |
URI: | http://hdl.handle.net/11154/1764 |
ISSN: | 0004-637X |
Appears in Collections: | Ciencias
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