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Parkes observations for project P958 semester 2020APRS_22
Fast radio bursts (FRBs) continue to raise more questions than they answer. Until last year, only one burst – the only one known to repeat - had been localized to a bright radio nebula (either a young supernova remnant or pulsar wind nebulae) in a distant dwarf galaxy.
Over the last three years searches with the Australian Square Kilomet... morere Array Pathfinder (ASKAP) have detected 35 bursts, eight of which have been localised to host galaxies at redshifts ranging from 0.1 to 0.5. These bursts and their hosts are very unlike the repeater, suggesting there may be a dichotomy in the population. However one of the arcminute-localised ASKAP FRBs has recently been found to repeat.
Here we propose to search and study repetitions in this FRB population. Our comprehensive sample and a dense monitoring campaign of well localised bursts, at a fluence limit more than 60 times lower than that of their detections to characterise the fraction of bursts that repeat. For bursts that repeat the unique wide bandwidth observations will be used to test leading models of burst emission. less
Astronomical and Space Sciences not elsewhere classified
01 Apr 2020
30 Sep 2020
Creative Commons Attribution 4.0 International Licence
Shannon, Ryan; Macquart, Jean-Pierre; Dodson, Richard; Phillips, Chris; Deller, Adam; James, Clancy; Bannister, Keith; Oslowski, Stefan; Kerr, Matthew; Flynn, Chris; Bhandari, Shivani; Farah, Wael; Qiu, Hao; Zhang, Gerry; Kumar, Pravir (2020): Parkes observations for project P958 semester 2020APRS_22. v1. CSIRO. Data Collection.
All Rights (including copyright) CSIRO 2020.
Access to this collection's metadata and/or files (if any) are restricted until 30 Mar 2022.
Australia Telescope National Facility
P958 - Searching for repetition from ASKAP fast radio bursts
Fast radio bursts are brilliant flashes of radio emission that outshine most other sources in the sky for the blink of they eye that they are seen. Because of their short duration, it has been hard to tell where they come from and what causes them. Recently one has been found to repeat (making it much easier to study), and it comes from a very dist... moreant galaxy (billions of light years away). To better understand the bursts, we are conducting a survey with the Australian Square Kilometre Array Pathfinder in Western Australia to more than double the known objects. We are using the Parkes telescope to see if any of the new bursts repeat. less