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Detection of Six Rapidly Scintillating AGNs and the Diminished Variability of J1819+3845
J. Y. Koay, H. E. Bignall, J. -P. Macquart +3
The extreme, intra-hour and > 10% rms flux density scintillation observed in AGNs such as PKS 0405-385, J1819+3845 and PKS 1257-326 at cm wavelengths has been attributed to scatter…
Dual-Frequency Observations of 140 Compact, Flat-Spectrum Active Galactic Nuclei for Scintillation-Induced Variability
J. Y Koay, J. -P. Macquart, B. J. Rickett +7
The 4.9 GHz Micro-Arcsecond Scintillation-Induced Variability (MASIV) Survey detected a drop in Interstellar Scintillation (ISS) for sources at redshifts z > 2, indicating an appar…
Detection Rates for Surveys for Fast Transients with Next Generation Radio Arrays
Jean-Pierre Macquart
We relate the underlying properties of a population of fast radio-emitting transient events to its expected detection rate in a survey of finite sensitivity. The distribution of th…
Source detection in interferometric visibility data. I. Fundamental estimation limits
Cathryn M. Trott, Randall B. Wayth, Jean-Pierre R. Macquart +1
Transient radio signals of astrophysical origin present an avenue for studying the dynamic universe. With the next generation of radio interferometers being planned and built, ther…