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Low Frequency Maps of the Galaxy

Published online by Cambridge University Press:  25 April 2016

H.V. Cane
H.V. Cane*
Affiliation:
Department of Physics, University of Tasmania
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Extract

This paper is a preliminary report on the sky mapping being undertaken at the University of Tasmania using the Llanherne low frequency array. (Ellis 1972).

The observations are facilitated by the use of an on-line PDP-8 computer and the beam steering system described by Whitham (1975). In summary, a scanning system is used in which the computer is programmed to steer the telescope beam to a number of declinations with a time interval between settings such that a scan takes 5 minutes. Usually a scan of 12 declinations is chosen. Calibration levels obtained each hour and recorded on magnetic tape permit gain changes to be accounted for when the data is analysed from the tape.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 6 , October 1975 , pp. 330 - 331
Copyright
Copyright © Astronomical Society of Australia 1975

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References

Ellis, G.R.A., Proc. A.S.A., 2, 135 (1972).Google Scholar
Hamilton, P.A., and Haynes, R.F., Aust. J. Phys., 21, 895 (1968).CrossRefGoogle Scholar
Hamilton, P.A., PhD thesis, University of Tasmania (1969).Google Scholar
Jones, B.B., and Finlay, E.A., Aust. J. Phys., 27, 687 (1974).CrossRefGoogle Scholar
Shajn, C.A., Komesaroff, M.M., and Higgins, C.S., Aust. J. Phys., 14, 508 (1961).Google Scholar
Whitham, P.S., Proc. A.S.A., 2, 338 (1975).Google Scholar