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Observations of 18 cm OH Emission and Absorption from Halley’s Comet

Published online by Cambridge University Press:  25 April 2016

R. A. Duncan ,
R. P. Norris ,
J. R. Forster ,
R. T. Stewart  and
D. McConnell
R. A. Duncan
Affiliation:
Division of Radiophysics, CSIRO, Sydney
R. P. Norris
Affiliation:
Division of Radiophysics, CSIRO, Sydney
J. R. Forster
Affiliation:
Division of Radiophysics, CSIRO, Sydney
R. T. Stewart
Affiliation:
Division of Radiophysics, CSIRO, Sydney
D. McConnell
Affiliation:
Division of Radiophysics, CSIRO, Sydney
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Abstract

The 1665 and 1667 MHz OH intensity towards Halley’s comet has been monitored during the period October 1985 to April 1986. The flux density variation during the course of the apparition roughly follows the predictions of Schloerb and Gerard (1985), although we find a systematically lower flux than they predicted. The relative intensities of these lines are approximately in the ratio expected for thermodynamic equilibrium.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 6 , Issue 3 , 1986 , pp. 301 - 303
Copyright
Copyright © Astronomical Society of Australia 1986

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References

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