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Contributions to radio astronomy

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Hamilton, Philip Alexander (1984) Contributions to radio astronomy. DSc thesis, University of Tasmania.

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Abstract

This thesis presents contributions to radio astronomy in the
areas of instrumentation, pulsar astronomy and low frequency radio
astronomy made over a twenty year period. The contributions in
instrumentation include the development of broad-band array telescopes
for use at low frequencies, a new control system for the Parkes
telescope and a wide-band spectrograph and polarimeter using surface
acoustic wave devices. In pulsar astronomy significant contributions
include extensive studies of pulsar polarization, detailed
observations of the recovery from period discontinuities and the
discovery of the first radio pulsar in another galaxy. The papers in
low frequency radio astronomy give the first high-resolution whole sky
surveys at frequencies below 20 MHz, and an analysis which revealed
the free electron distribution in the galactic plane subsequently
confirmed by other measurements such as the dispersion of pulsar
signals.
The great majority of the work reported here has been carried out
using national or shared facilities - for example the Australian
National Radio Astronomy Observatory at Parkes, New South Wales, and
facilities of the Deep Space Communications Network operated for NASA.
Many of the equipment configurations were 'unusual' in the sense of
being non-standard at the observatories. It is neither feasible nor
sensible to operate someone else's telescope in such a manner on your
own, and I have had very profitable collaboration not only with
colleagues and students at the University of Tasmania but also with
members of the CSIRO Division of Radiophysics (which Division operates
the Parkes Observatory). Such collaboration has been a vital factor in
getting the science done but it has led to joint authorship of many of
the papers in this collection, and at times the ordering of authors on
a paper has been influenced by more than scientific factors (including
a scientific journal's "house style").
I have therefore prefaced the thesis with a short review,
concentrating on my contributions to the material presented. Not all
the publications which are submitted are covered by the review, but
rather the key papers and topics. The review is followed by a full
list of the papers submitted, together with further comments on my
contributions to papers with several authors. The thesis concludes
with the submitted papers grouped according to topic rather than in
chronological order.
All of the material presented here is original; I have submitted
none of it for the Degree of Doctor of Science.

Item Type: Thesis (DSc)
Keywords: Radio astronomy, Pulsars, Radio telescopes
Copyright Holders: The Author
Copyright Information:

Copyright 1984 the Author - The University is continuing to endeavour to trace the copyright
owner(s) and in the meantime this item has been reproduced here in good faith. We
would be pleased to hear from the copyright owner(s).

Additional Information:

Thesis (D.Sc.)--University of Tasmania, 1985. Contains previously published articles authored or co-authored by P.A. Hamilton

Date Deposited: 08 Dec 2014 23:58
Last Modified: 04 Jul 2017 06:40
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