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Physical Conditions in the Planetary Nebula Hb 12

Published online by Cambridge University Press:  18 September 2017

D.R. Flower  and
C.J. Penn
D.R. Flower
Affiliation:
Department of Physics, University of Durham, UK
C.J. Penn
Affiliation:
Department of Physics, University of Durham, UK

Extract

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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.

Type
Abstracts of Contributed Papers
Information
Symposium - International Astronomical Union , Volume 103: Planetary Nebulae , 1983 , pp. 519 - 520
Copyright
Copyright © Reidel 1983 

References

Aitken, D.K., Roche, P.F., Spenser, P.M. and Jones, B.: 1979, Astrophys. J. 233, 925.CrossRefGoogle Scholar
Barker, T.: 1978, Astrophys. J. 219, 914.CrossRefGoogle Scholar
Purton, C.R., Feldman, P.A., Marsh, K.A., Wright, A.E. and Allen, D.A.: 1982, Mon. Not. R. astr. Soc. 198, 321.CrossRefGoogle Scholar