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2008ApJ...689..219K - Astrophys. J., 689, 219-224 (2008/December-2)
The true shapes of the Dumbbell and the Ring.
KWOK S., CHONG S.-N., KONING N., HUA T. and YAN C.-H.
Abstract (from CDS):
Using images centered around the 2.12 µm line of molecular hydrogen obtained with the Wide Field Infrared Camera on the Canada-France-Hawaii Telescope, we show that in spite of the different apparent morphologies, the Dumbbell Nebula and the Ring Nebula share the same intrinsic three-dimensional triple biconic structure.
Abstract Copyright: ∼
Journal keyword(s): Infrared: ISM - ISM: Planetary Nebulae: General - ISM: Planetary Nebulae: Individual: NGC Number: NGC 6720 - planetary nebulae: individual (NGC 6853)
Simbad objects: 14
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