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Physical Conditions in the Planetary Nebula Hb 12
Published online by Cambridge University Press: 18 September 2017
Extract
The planetary nebula Hb 12 has recently been observed at infrared (Aitken et al., 1979) and radio (Purton et al., 1982) wavelengths. The detection of a silicate emission feature in the 8-13 μm region suggests that the nebula is oxygen rich. A high emission measure is derived from the radio spectrum, implying a high intrinsic density.
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- Copyright © Reidel 1983