1.2k citations
- Commonwealth Scientific and Industrial Research OrganisationAU20 papers
- Australia Telescope National FacilityAU16 papers
- Swinburne University of TechnologyAU14 papers
- ARC Centre of Excellence for Gravitational Wave DiscoveryAU12 papers
- University of TübingenDE12 papers
- Curtin UniversityAU11 papers
- Astronomy and SpaceAU9 papers
- International Centre for Radio Astronomy ResearchAU9 papers
- The University of SydneyAU9 papers
- Auckland University of TechnologyNZ8 papers
- Max Planck Institute for Radio AstronomyDE7 papers
- United States Naval Research LaboratoryUS7 papers
6 papers · 1 filter
Milliarcsecond Structures of Variable Peaked-Spectrum Sources
K. Ross, C. Reynolds, N. Seymour +3
Spectral variability offers a new technique to identify small scale structures from scintillation, as well as determining the absorption mechanism for peaked-spectrum (PS) radio so…
The Annual Cycle in Scintillation Timescale of PMN J1726+0639
Hayley E. Bignall, Artem V. Tuntsov, Jamie Stevens +3
We discovered rapid intra-day variability in radio source PMN J1726+0639 at GHz frequencies, during a survey to search for such variability with the Australia Telescope Compact Arr…
Absorption spectra of electrified hydrogen molecules
Mark A. Walker
Molecular hydrogen normally has only weak, quadrupole transitions between its rovibrational states, but in a static electric field it acquires a dipole moment and a set of allowed…
ASKAP observations of multiple rapid scintillators reveal a degrees-long plasma filament
Yuanming Wang, Artem Tuntsov, Tara Murphy +5
We present the results from an Australian Square Kilometre Array Pathfinder search for radio variables on timescales of hours. We conducted an untargeted search over a 30 deg f…
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…