R
R. H. Ferris
Researcher at Australia Telescope National Facility
Publications - 24
Citations - 1592
R. H. Ferris is an academic researcher from Australia Telescope National Facility. The author has contributed to research in topics: Very-long-baseline interferometry & Centaurus A. The author has an hindex of 12, co-authored 24 publications receiving 1573 citations. Previous affiliations of R. H. Ferris include Commonwealth Scientific and Industrial Research Organisation.
Papers
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Journal ArticleDOI
The Australia Telescope Compact Array Broadband Backend (CABB)
Warwick Wilson,R. H. Ferris,P. Axtens,A. Brown,E. Davis,Grant Hampson,M. Leach,Paul Roberts,S. Saunders,B. S. Koribalski,J. L. Caswell,Emil Lenc,Jamie Stevens,Maxim Voronkov,Mark H. Wieringa,Kate J. Brooks,Philip G. Edwards,Ron Ekers,B. Emonts,Luke Hindson,Luke Hindson,Simon Johnston,Sarah T. Maddison,Elizabeth K. Mahony,Elizabeth K. Mahony,Siddharth Malu,Marcella Massardi,Minnie Mao,Minnie Mao,David McConnell,Ray P. Norris,Dominic Schnitzeler,Ravi Subrahmanyan,James Urquhart,Mark Thompson,R. M. Wark +35 more
TL;DR: The Compact Array Broadband Backend (CABB) as discussed by the authors is an extension of the Australia Telescope Compact Array (ATCA) with 16-fold increase in observing bandwidth, from 2 x 128 MHz to 2 x 2048 MHz, high bit sampling, and addition of 16 zoom windows (each divided into a further 2048 channels) provide major improvements for all ATCA observations.
Journal ArticleDOI
The Australia Telescope Compact Array Broad-band Backend: description and first results
Warwick Wilson,R. H. Ferris,P. Axtens,A. Brown,E. Davis,Grant Hampson,M. Leach,Paul Roberts,S. Saunders,Bärbel S. Koribalski,J. L. Caswell,Emil Lenc,Jamie Stevens,Maxim Voronkov,Mark H. Wieringa,Kate J. Brooks,Philip G. Edwards,Ron Ekers,B. Emonts,Luke Hindson,Luke Hindson,Simon Johnston,Sarah T. Maddison,Elizabeth K. Mahony,Elizabeth K. Mahony,Siddharth Malu,Marcella Massardi,Minnie Mao,Minnie Mao,David McConnell,Ray P. Norris,Dominic Schnitzeler,Ravi Subrahmanyan,James Urquhart,Mark Thompson,R. M. Wark +35 more
TL;DR: The Compact Array Broadband Backend (CABB) as mentioned in this paper has been used to improve the performance of the Australia Telescope Compact Array (ATCA) with a 16-fold increase in observing bandwidth, from 2 в 128 to 2 ǫ 2048 MHz.
Journal ArticleDOI
The Subparsec-Scale Structure and Evolution of Centaurus A: The Nearest Active Radio Galaxy
Steven Tingay,David L. Jauncey,John Reynolds,Anastasios Tzioumis,E. A. King,Robert A. Preston,Dayton L. Jones,David W. Murphy,David L. Meier,T. D. van Ommen,P. M. McCulloch,Simon Ellingsen,M. E. Costa,P. G. Edwards,James E. J. Lovell,George D. Nicolson,J. F. H. Quick,Athol J. Kemball,Athol J. Kemball,Victor Migenes,P. Harbison,Paul A. Jones,Graeme L. White,R. G. Gough,R. H. Ferris,M. W. Sinclair,Roger W Clay +26 more
TL;DR: In this article, it was shown that Cen A is a low-luminosity FR I?type source and in general has the properties observed in other FR I radio galaxies, and that the estimated times of component ejection from the compact core are reasonably coincident with enhancements in hard X-ray intensity and 22 GHz flux density.
Journal ArticleDOI
An unusually strong Einstein ring in the radio source PKS1830–211
David L. Jauncey,John Reynolds,Anastasios Tzioumis,T. W. B. Muxlow,Richard A. Perley,David W. Murphy,Robert A. Preston,E. A. King,A. R. Patnaik,Dayton L. Jones,David L. Meier,D. J. Bird,David Blair,John D. Bunton,Roger W Clay,M. E. Costa,R. A. Duncan,R. H. Ferris,R. G. Gough,P. A. Hamilton,D.W. Hoard,Athol J. Kemball,Michael Kesteven,E.T. Lobdell,A. N. Lurten,P. M. McCulloch,J. D. Murray,George D. Nicolson,A. P. Rao,A. Savage,M. W. Sinclair,L. Skjerve,L. Taaffe,R. M. Wark,Graeme L. White +34 more
TL;DR: In this article, high-resolution radio images of PKS1830 - 211 are obtained to study the possibility that the double structure is a gravitationally lensed object, and the VLBI observations, taken from interferometric radiotelescope networks, reveal an elliptical ring connecting two bright spots of similar composition.
Journal ArticleDOI
Methanol Masers as Tracers of Circumstellar Disks
Ray P. Norris,S. E. Byleveld,S. E. Byleveld,Philip J. Diamond,Simon Ellingsen,R. H. Ferris,R. G. Gough,Michael Kesteven,P. M. McCulloch,Chris Phillips,John Reynolds,Anastasios Tzioumis,Y. Takahashi,E. R. Troup,K. J. Wellington +14 more
TL;DR: In this article, it was shown that methanol maser sources are not only linear in space but also have a linear velocity gradient along them, which suggests that the masers are situated in edge-on circumstellar disks around young stars.