scholarly journals The New Radio Astronomy Centre of the University of Sydney

Nature ◽  
1960 ◽  
Vol 188 (4750) ◽  
pp. 528-529 ◽  
Author(s):  
H. MESSEL
Keyword(s):  
Radio Astronomy ◽  
New Radio ◽  
The University

Bernard Yarnton Mills 1920–2011

2013 ◽  
Vol 24 (2) ◽  
pp. 294 ◽  
Author(s):  
R. H. Frater ◽  
W. M. Goss ◽  
H. W. Wendt
Keyword(s):  
Radio Astronomy ◽  
The University ◽  
Csiro Division

Bernie Mills is remembered globally as an influential pioneer in the evolving field of radio astronomy. His contributions with the ‘Mills Cross' at the CSIRO Division of Radiophysics and later at the University of Sydney's School of Physics and the development of the Molonglo Observatory Synthesis Telescope (MOST) were widely recognized as astronomy evolved in the years 1948–85 and radio astronomy changed the viewpoint of the astronomer as a host of new objects were discovered.

scholarly journals The early technical development of the VLA

1991 ◽  
Vol 131 ◽  
pp. 160-164 ◽  
Author(s):  
George W. Swenson
Keyword(s):  
Radio Astronomy ◽  
Technical Development ◽  
Large Array ◽  
Astronomy Observatory ◽  
University Of Illinois ◽  
Very Large Array ◽  
Radio Astronomy Observatory ◽  
Leave Of Absence ◽  
The University ◽  
Academic Year

In the spring of 1964, having qualified for a sabbattical leave from the University of Illinois and having recently completed two years as Chairman of the Visiting Committee of the National Radio Astronomy Observatory, I inquired of the NRAO staff as to whether a desk and possibly some augmentation of my University half-salary might be available at Green Bank for the following academic year. Instead I was invited to join the staff as a fulltime employee and to take a coordinating role in the development of the “very large array” as Chairman of the Design Committee. The University granted me a year’s leave of absence which eventually stretched to four years.

scholarly journals Low-Noise Sis Receivers for New Radio-Astronomy Projects

2019 ◽  
Vol 62 (7-8) ◽  
pp. 547-555
Author(s):  
K. I. Rudakov ◽  
P. N. Dmitriev ◽  
A. M. Baryshev ◽  
A. V. Khudchenko ◽  
R. Hesper ◽  
...  
Keyword(s):  
Radio Astronomy ◽  
Low Noise ◽  
New Radio

scholarly journals Pulsar Observations at the Ghana Radio Astronomy Observatory

2017 ◽  
Vol 13 (S337) ◽  
pp. 410-411
Author(s):  
T. W. Scragg ◽  
B. W. Stappers ◽  
R. P. Breton ◽  
J. N. Smith ◽  
D. Adomako ◽  
...  
Keyword(s):  
Radio Telescope ◽  
Radio Astronomy ◽  
Astronomy Observatory ◽  
Earth Station ◽  
Radio Astronomy Observatory ◽  
Pulsar Timing ◽  
New Radio ◽  
Timing System

AbstractIn August 2017 a new radio telescope, the Ghana Radio Astronomy Observatory (GRAO), was officially inaugurated at Kuntunse, Ghana. The GRAO is a former satellite Earth station and now the first operational station in the African VLBI Network (AVN). The Jodrell Bank Centre for Astrophysics (JBCA), supported by the UK’s STFC/Newton Fund, has developed a new pulsar timing system (Hebe) for the GRAO. We present some aspects of the design of Hebe and an outline of the first pulsar detection at GRAO.

scholarly journals Radio variability properties for sources at multi-frequencies

2007 ◽  
Vol 3 (S245) ◽  
pp. 251-252
Author(s):  
Y. Liu ◽  
J. H. Fan ◽  
H. G. Wang
Keyword(s):  
Time Series ◽  
Radio Astronomy ◽  
Power Spectral Analysis ◽  
Light Curves ◽  
University Of Michigan ◽  
Astronomy Observatory ◽  
Period Analysis ◽  
Radio Astronomy Observatory ◽  
Power Spectral ◽  
The University

AbstractUsing three radio databases of the university of Michigan Radio Astronomy Observatory (UMRAO), the National Radio Astronomy Observatory (NRAO), and the Metsähovi Observatory, we analyzed the radio light curves by the power spectral analysis and CLEANest method in search for possible periodicity. Multiple periods are found in some sources at multi-frequencies. We adopted the wavelets for period analysis of unevenly sampled time series to search for the evolution of the parameters (period, amplitude) of possible periodicities. Some possible variation of these parameters are found.

scholarly journals Spectroscopic evidence bearing on the distribution of gas in extra-galactic systems

1958 ◽  
Vol 5 ◽  
pp. 23-31 ◽  
Author(s):  
N. U. Mayall
Keyword(s):  
Radio Astronomy ◽  
Local Group ◽  
Radio Observation ◽  
Magellanic Clouds ◽  
Optical Data ◽  
Joint Paper ◽  
New Developments ◽  
New Radio ◽  
Andromeda Nebula ◽  
Made In

Six years ago, in a joint paper with W. Baade, I presented certain spectrographic data bearing on the distribution and motions of gaseous masses in spiral nebulae. Since then progress in this special field has been unspectacular and relatively slow by conventional optical means, mainly because of the considerable faintness of the sources. Nevertheless, the optical data now seem sufficiently representative to warrant a review directed toward an eventual comparison of optical and radio results. For there can be little doubt that the new radio astronomy techniques give every indication of revolutionary new advances. Highly significant results have been obtained for the Magellanic Clouds, a beginning has been made in the local group spirals such as the Andromeda nebula, and it is reasonable to expect, as more powerful installations come into operation, that the nearer field and great cluster nebulae will come under detailed radio observation. But these matters have been considered at the recent Jodrell Bank symposium on radio astronomy, in Manchester. For this reason and because I am not a radio astronomer I shall proceed, without further discussion of these exciting new developments, to a description of the more prosaic optical data obtained from spectrographic observations.

scholarly journals Brightness temperature for radio sources

2007 ◽  
Vol 3 (S245) ◽  
pp. 245-246
Author(s):  
J. H. Fan ◽  
Y. Huang ◽  
Y. Liu ◽  
Y. Gao ◽  
T. X. Hua ◽  
...  
Keyword(s):  
Brightness Temperature ◽  
Radio Astronomy ◽  
Radio Sources ◽  
University Of Michigan ◽  
Astronomy Observatory ◽  
Radio Astronomy Observatory ◽  
Brightness Temperatures ◽  
The University

AbstractIn this work, using the database of the university of Michigan Radio Astronomy Observatory (UMRAO), we determined the brightness temperatures, TB for a sample of 167 radio sources. The value of TB is in a range of log TB(K) = 10.46 to 20.08, which suggested that the boosting factors are in a range of δ = 0.41 to 41.26.

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