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Time Variation in the Polarization of OH Emission from NGC 6334B

Published online by Cambridge University Press:  25 April 2016

W. M. Goss ,
B. J. Robinson  and
R. N. Manchester
W. M. Goss
Affiliation:
Radiophysics Laboratory, CSIRO, Sydney
B. J. Robinson
Affiliation:
Radiophysics Laboratory, CSIRO, Sydney
R. N. Manchester
Affiliation:
Radiophysics Laboratory, CSIRO, Sydney
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Extract

Time variations in both the NGC 6334 and Orion OH sources have been reported by the Berkeley group. The variations in NGC 6334 have been partially confirmed by the group at the Lincoln Laboratory, who show that the variations are confined to the southern source, NGC 6334B. These latter authors find variable components at —6.6 and —7.9 km/s at 1665 MHz and at —8.9 km/s at 1667 MHz. Both features at 1665 MHz appear to vary, both up and down, with time; during 1966 October the characteristic rise time was nine days or less. The Berkeley results show that the linear polarization was constant during a two-week period in 1965 October. The Lincoln Laboratory results from 1966 October to 1967 June show that both the degree and sense of circular polarization remain constant as the three features vary with time.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 1 , Issue 5 , March 1969 , pp. 214 - 215
Copyright
Copyright © Astronomical Society of Australia 1969

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References

1 Weaver, H., Dieter, N. H. and Williams, D. R. W., Ap. J., Suppl. Ser., 16, 219 (1968).CrossRefGoogle Scholar
2 Ball, J. A. and Meeks, M. L., Ap. J., 153, 577 (1968).Google Scholar