| Description: | We have conducted a census of the bright FRB population using a 6-10 antenna subarray of ASKAP, configured in a fly's-eye mode with an instantaneous 180-300 sq.deg. field of view. We have taken advantage of ASKAP's phased array feeds to accurately determine the fluence, spectrum and location (to within a fraction of a beamwidth) of a large sample of bursts. This has allowed us to cleanly make a number of straightforward deductions about the population. I will present the results of our survey. I will also present the properties of the bursts at 200 MHz (as shadowed by the MWA), their spectral properties, and the probable host galaxy of a very low dispersion measure burst. None of these bursts have repeated, even after >30 days of on-sky followup per burst.
The image shows an artist's impression of fast radio bursts in the sky above CSIRO's ASKAP radio telescope. Fast radio bursts come from all over the sky and last for just milliseconds. ASKAP is located at the Murchison Radio-astronomy Observatory, the future site in Australia for the Square Kilometre Array (SKA). |
