activity
20112026
most citedComplex Faraday depth structure of Active Galactic Nuclei as revealed by broadband radio polarimetry

181 citations · 876 across the 14 of their papers we have counts for

collaborators

13 papers

astro-ph.IM2026★ 1 cited

RM-Tools: Software for Analyzing Polarized Radio Spectra

Cameron L. Van Eck, Cormac R. Purcell, Lerato Baidoo +19

Polarization observations using modern radio telescopes cover large numbers of frequency channels over broad bandwidths, and require advanced techniques to extract reliable scienti…

astro-ph.IM2024★ 2 cited

Interpolation techniques for reconstructing Galactic Faraday rotation

Affan Khadir, Ayush Pandhi, Sebastian Hutschenreuter +4

The line-of-sight structure of the Galactic magnetic field (GMF) can be studied using Faraday rotation measure (RM) grids. We analyze how the choice of interpolation kernel can aff…

astro-ph.EP2020★ 146 cited

Coherent radio emission from a quiescent red dwarf indicative of star-planet interaction

H. K. Vedantham, J. R. Callingham, T. W. Shimwell +11

Low frequency (MHz) stellar radio emission is expected to originate in the outer corona at heights comparable to and larger than the stellar radius. Such emission…

astro-ph.HE2018★ 12 cited

Faraday rotation study of NGC 612 (PKS 0131-36): a hybrid radio source and its magnetised circumgalactic environment

J. K. Banfield, S. P. O'Sullivan, M. H. Wieringa +1

We present a polarization and Faraday rotation study of the hybrid morphology radio galaxy NGC 612 (PKS 0131-36), using Australian Telescope Compact Array observations from 1 to 3…

astro-ph.HE2018★ 31 cited

Broadband radio polarimetry of Fornax A, I: Depolarized patches generated by advected thermal material from NGC 1316

C. S. Anderson, B. M. Gaensler, G. H. Heald +3

We present observations and analysis of the polarized radio emission from the nearby radio galaxy Fornax A over 1.28--3.1 GHz, using data from the Australia Telescope Compact Array…

astro-ph.IM2017★ 69 cited

The challenges of low-frequency radio polarimetry: lessons from the Murchison Widefield Array

Emil Lenc, C. S. Anderson, N. Barry +26

We present techniques developed to calibrate and correct Murchison Widefield Array (MWA) low frequency (72-300 MHz) radio observations for polarimetry. The extremely wide field-of-…

astro-ph.GA2016★ 34 cited

Interacting Large-Scale Magnetic Fields and Ionised Gas in the W50/SS433 System

J. S. Farnes, B. M. Gaensler, C. Purcell +5

The W50/SS433 system is an unusual Galactic outflow-driven object of debatable origin. We have used the Australia Telescope Compact Array (ATCA) to observe a new 198 pointing mosai…

astro-ph.GA2014★ 63 cited

Faraday Rotation from Magnesium II Absorbers towards Polarized Background Radio Sources

J. S. Farnes, S. P. O'Sullivan, M. E. Corrigan +1

Strong singly-ionized magnesium (MgII) absorption lines in quasar spectra typically serve as a proxy for intervening galaxies along the line of sight. Previous studies have found a…

astro-ph.HE2013★ 29 cited

Broadband radio circular polarization spectrum of the relativistic jet in PKS B2126-158

S. P. O'Sullivan, N. M. McClure-Griffiths, I. J. Feain +2

We present full-Stokes radio polarization observations of the quasar PKS B2126-158 (z=3.268) from 1 to 10 GHz using the Australia Telescope Compact Array. The source has large frac…

astro-ph.CO2013★ 64 cited

Thermal plasma in the giant lobes of the radio galaxy Centaurus A

S. P. O'Sullivan, I. J. Feain, N. M. McClure-Griffiths +7

We present a Faraday rotation measure (RM) study of the diffuse, polarized, radio emission from the giant lobes of the nearest radio galaxy, Centaurus A. After removal of the smoot…

astro-ph.CO2012★ 36 cited

Giant Lobes of Centaurus A Radio Galaxy Observed with the Suzaku X-ray Satellite

L. Stawarz, Y. T. Tanaka, G. Madejski +15

[abridged] We report on Suzaku observations of selected regions within the Southern giant lobe of the radio galaxy Centaurus A. We focus on distinct X-ray features likely associate…

astro-ph.CO2012★ 181 cited

Complex Faraday depth structure of Active Galactic Nuclei as revealed by broadband radio polarimetry

S. P. O'Sullivan, S. Brown, T. Robishaw +8

We present a detailed study of the Faraday depth structure of four bright (> 1 Jy), strongly polarized, unresolved, radio-loud quasars. The Australia Telescope Compact Array (ATCA)…

astro-ph.CO2011★ 62 cited

The radio continuum structure of Centaurus A at 1.4 GHz

Ilana Feain, Tim Cornwell, Ron Ekers +12

A 45 deg2 radio continuum imaging campaign of the nearest radio galaxy, Centaurus A, is reported. Using the Australia Telescope Compact Array and the Parkes 64m radio telescope at…