R. J. Sault

Publication List Details

Period

1985 - 2009

Number

36

Co-Authors

The variability of Sagittarius A* at 3 millimeter (2009)

Li, Juan, Shen, Zhi-Qiang, Miyazaki, Atsushi, Huang, Lei, Sault, R. J., Miyoshi, Makoto, ...

We have performed monitoring observations of the 3-mm flux density toward the Galactic Center compact radio source Sgr A* with the Australia Telescope Compact Array since 2005 October. Careful...

Real-Time Calibration of the Murchison Widefield Array (2008)

Mitchell, D. A., Greenhill, L. J., Wayth, R. B., Sault, R. J., Lonsdale, C. J., Cappallo, R. J., ...

The interferometric technique known as peeling addresses many of the challenges faced when observing with low-frequency radio arrays, and is a promising tool for the associated calibration systems....

NEW OBSERVATIONS OF THE VELA X REGION (2007)

R. J. Sault, A. J. Green, D. K. Milne

ABSTRACT. A recent sub-arcminute 843 MHz survey of the Vela supernova remnant reveals that the central plerion (Vela X) contains a network of complex filamentary structures. Unlike the situation in...

Mon. Not. R. Astron. Soc. 319, 484±496 (2000) Radio circular polarization of active galaxies (2007)

D. P. Rayner, R. J. Sault

1.1 Circular polarization of active galaxies We present the first results of a circular polarization survey conducted with the Australia Telescope Compact Array (ATCA). We demonstrate the ability to...

Post Correlation versus Real-Time Adaptive RFI Cancellation (2007)

D. A. Mitchell, R. J. Sault, M. J. Kesteven

In radio astronomy real-time adaptive filters (and their post-correlation equivalents) can be used to model the RFI environment so that it can be cancelled from the astronomy signal path. In this...

Radio Observations of the Hubble Deep Field (2007)

South Norris Hopkins, R. P. Norris, A. Hopkins, R. J. Sault, D. A. Mitchell, R. D. Ekers, ...

We have observed the Hubble Deep Field South and its anking elds with the Australia Telescope Compact Array down to an rms sensitivity of about 10 Jy at each of four radio bands (20, 13, 6, and 3...

A Catalog of HI Clouds in the Large Magellanic Cloud (2007)

Kim, S., Rosolowsky, E., Lee, Y., Kim, Y., Jung, Y. C., Dopita, M. A., ...

A 21 cm neutral hydrogen interferometric survey of the Large Magellanic Cloud (LMC) combined with the Parkes multi-beam HI single-dish survey clearly shows that the HI gas is distributed in the form...

Imaging algorithms in radio interferometry (2007)

Sault, R. J., Oosterloo, T. A.

The paper reviews progress in imaging in radio interferometry for the period 1993-1996. Unlike an optical telescope, the basic measurements of a radio interferometer (correlations between antennas)...

Radio path length correction using water vapour radiometry (2006)

Sault, R. J., Carrad, G. J., Hall, P. J., Crofts, J.

Path length changes through the atmosphere cause significant errors for astronomical radio interferometry at high frequencies (e.g. 100 GHz). Path length differences typically give rise to a...

A retrospective view of Miriad (2006)

Sault, R. J., Teuben, P. J., Wright, M. C. H.

Miriad is a radio interferometry data-reduction package, designed for taking raw data through to the image analysis stage. The Miriad project, begun in 1988, is now middle-aged. With the wisdom of...

Longitude-resolved imaging of Jupiter at lambda = 2 cm (2006)

Sault, R. J., Engel, C., De Pater, Imke

We present a technique for creating a longitude-resolved image of Jupiter's thermal radio emission. The technique has been applied to VLA data taken on 25 January 1996 at a wavelength of 2 cm. A...

1.4 GHz polarimetric observations of the two fields imaged by the DASI experiment (2006)

Bernardi, G., Carretti, E., Sault, R. J., Cortiglioni, S., Poppi, S.

We present results of polarization observations at 1.4 GHz of the two fields imaged by the DASI experiment ($\alpha = 23^{\rm h} 30^{\rm m}$, $\delta = -55^{\circ}$ and $\alpha = 00^{\rm h} 30^{\rm...

High-frequency radio observations of the Kuehr sample and the epoch-dependent luminosity function of the flat-spectrum quasars (2005)

Ricci, R., Prandoni, I., Gruppioni, G., Sault, R. J., De Zotti, G.

We discuss our ATCA 18.5 and 22 GHz flux density measurements of the Southern extragalactic sources in the complete 5-GHz sample of Kuehr et al. (1981). The high-frequency (5-18.5 GHz) spectral...

A Neutral Hydrogen Survey of the Large Magellanic Cloud: Aperture Synthesis and Multibeam Data Combined (2005)

Kim, S., Staveley-Smith, L., Dopita, M. A., Sault, R. J., Freeman, K. C., Lee, Y., ...

Using a Fourier-plane technique, we have merged HI ATCA and Parkes data sets providing an accurate set of images of the LMC sensitive to structure on scales of 15 pc (for an LMC distance of 55 kpc)...

High Galactic latitude polarized emission at 1.4 GHz and implications for cosmic microwave background observations (2004)

Carretti, E., Bernardi, G., Sault, R. J., Cortiglioni, S., Poppi, S.

We analyse the polarized emission at 1.4 GHz in a 3x3 deg^2 area at high Galactic latitude (b ~ -40deg). The region, centred in (RA=5h, Dec=-49deg), was observed with the Australia Telescope Compact...

High-frequency polarization properties of southern Kuhr sources (2003)

Ricci, R., Prandoni, I., Gruppioni, C., Sault, R. J., De Zotti, G.

We have carried out observations at 18.5 GHz with the Australia Telescope Compact Array (ATCA) of 250 out of the 258 Southern extragalactic sources in the complete 5 GHz 1 Jy sample by K\"uhr et al....

Polarization observations in a low synchrotron emission field at 1.4 GHz (2003)

Bernardi, G., Carretti, E., Cortiglioni, S., Sault, R. J., Kesteven, M. J., Poppi, S.

We present the first observation of the diffuse polarized synchrotron radiation of a patch ($\sim 3^\circ \times 3^\circ$) in the BOOMERanG field, one of the areas with the lowest CMB foreground...

Jupiter's radio spectrum from 74 MHz up to 8 GHz (2003)

De Pater, I., Butler, B. J., Green, D. A., Strom, R., Millan, R., Klein, M. J., ...

We carried out a brief campaign in September 1998 to determine Jupiter's radio spectrum at frequencies spanning a range from 74 MHz up to 8 GHz. Eleven different telescopes were used in this effort,...

Rapidly Evolving Circularly Polarized Emission during the 1994 Outburst of GRO J1665-40 (2002)

Macquart, J-P, Wu, K., Sault, R. J., Hannikainen, D. C.

We report the detection of circular polarization during the 1994 outburst of the Galactic microquasar GRO J1655-40. The circular polarization is clearly detected at 1.4 and 2.4GHz, but not at 4.8 and...

Variable circular polarisation associated with relativistic ejections from GRS 1915+105 (2002)

Fender, R. P., Rayner, D., McCormick, D. G., Muxlow, T. W. B., Pooley, G. G., Sault, R. J., ...

We report the discovery of variable circularly polarised radio emission associated with relativistic ejections from GRS 1915+105, based on observations with the Australia Telescope Compact Array...

The spectrum and variability of circular polarization in Sagittarius A* from 1.4 to 15 GHz (2002)

Bower, G. C., Falcke, H., Sault, R. J., Backer, D. C.

We report here multiepoch, multifrequency observations of the circular polarization in Sagittarius A*, the compact radio source in the Galactic center. Data taken from the Very Large Array (VLA)...

Spectral, polarisation and time-lag properties of GRS 1915+105 radio oscillations (2001)

Fender, R. P., Rayner, D., Trushkin, S. A., O'Brien, K., Sault, R. J., Pooley, G. G., ...

We report high sensitivity dual-frequency observations of radio oscillations from GRS 1915+105 following the decay of a major flare event in 2000 July. The oscillations are clearly observed at both...

HI Imaging of the Large Magellanic Cloud (2000)

Kim, S., Staveley-Smith, L., Sault, R. J.

We present results from the combined Australia Telescope Compact Array (ATCA) aperture synthesis mosaic survey of HI emission in the Large Magellanic Cloud with 64m Parkes single dish telescope...

Discovery of circularly polarised radio emission from SS 433 (1999)

Fender, Robert, Rayner, David, Norris, Ray, Sault, R. J., Pooley, Guy

We report the discovery of circularly polarised radio emission from the radio-jet X-ray binary SS 433 with the Australia Telescope Compact Array. The flux density spectrum of the circular...

Radio Observations of the Hubble Deep Field South - a New Class of Radio-Luminous Galaxies? (1999)

Norris, R. P., Hopkins, A., Sault, R. J., Ekers, R. D., Ekers, J., Badia, F., ...

We present the first results from a series of radio observations of the Hubble Deep Field South and its flanking fields. Here we consider only those sources greater than 100 microJy at 20 cm, in an...

Confirmation and Analysis of Circular Polarization from Sagittarius A* (1999)

Sault, R. J

Recently Bower et al. (1999b) have reported the detection of circular polarization from the Galactic Center black hole candidate, Sagittarius A*. We provide an independent confirmation of this...

The first three-dimensional reconstruction of a celestial object at radio wavelengths: Jupiter's radiation belts (1997)

R.J. Sault, T. Oosterloo, G.A. Dulk, Y. Leblanc

. For an object where the emission is optically thin, it is shown that the visibility measured by an interferometer is a sample of the three-dimensional Fourier transform of the object. If the object...

Multi-Frequency Synthesis (1991)

Conway National, J. E. Conway, R. J. Sault

Theory and practice of the technique of multi-frequency synthesis (MFS) are described, with emphasis on its application to VLBA observations. Contents 16.1 Introduction : : : : : : : : : : : : : : :...

Design and application of an image processing environment (1985)

Sault, R. J. (Robert John)

Includes copies of two published papers by the author. Bibliography: leaves R1-8.