349 citations · 1.9k across the 41 of their papers we have counts for
8 papers · 1 filter
Optical study of PKS B1322-110, the intra-hour variable radio source
Juan P. Madrid, Artem V. Tuntsov, Mischa Schirmer +7
Observations with the Australia Telescope Compact Array revealed intra-hour variations in the radio source PKS B1322-110 (Bignall et al. 2019). As part of an optical follow-up, we…
Spica and the annual cycle of PKS B1322-110 scintillations
Hayley Bignall, Cormac Reynolds, Jamie Stevens +9
PKS B1322-110 is a radio quasar that is located only 8.5' in angular separation from the bright B star Spica. It exhibits intra-day variability in its flux density at GHz frequenci…
Characterization of polarimetric and total intensity behaviour of a complete sample of PACO radio sources in the radio bands
Vincenzo Galluzzi, Marcella Massardi, Anna Bonaldi +17
We present high sensitivity (mJy) polarimetric observations in seven bands, from to GHz, of a complete sample of compact extragalactic radio sou…
Extreme radio-wave scattering associated with hot stars
Mark Walker, Artem Tuntsov, Hayley Bignall +5
We use data on extreme radio scintillation to demonstrate that this phenomenon is associated with hot stars in the solar neighbourhood. The ionized gas responsible for the scatteri…
Multiband Observations of the Quasar PKS 2326-502 during Active and Quiescent Gamma-Ray States in 2010-2012
Michael S. Dutka, Bryce D. Carpenter, Roopesh Ojha +12
Quasi-simultaneous observations of the Flat Spectrum Radio Quasar PKS 2326-502 were carried out in the gamma-ray, X-ray, UV, optical, near-infrared, and radio bands. Thanks to thes…
High-velocity OH megamasers in IRAS 20100-4156: Evidence for a Supermassive Black Hole
L. Harvey-Smith, J. R. Allison, J. A. Green +14
We report the discovery of new, high-velocity narrow-line components of the OH megamaser in IRAS 20100-4156. Results from the Australian Square Kilometre Array Pathfinder (ASKAP)'s…