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arXiv · 1903.06525

A Southern sky search for repeating Fast Radio Bursts using the Australian SKA Pathfinder

S. Bhandari·K. W. Bannister·C. W. James·R. M. Shannon·C. M. Flynn·M. Caleb·J. D. Bunton
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Abstract

We have conducted a search for bright repeating Fast Radio Bursts in our nearby Universe with the Australian Square Kilometer Array Pathfinder (ASKAP) in single-dish mode. We used eight ASKAP 12-m dishes, each equipped with a Chequerboard Phased Array Feed forming 36 beams on the sky, to survey $\sim$30,000 deg$^{2}$ of the southern sky ($-90^{\circ} < δ< +30^{\circ}$) in 158 antenna days. The fluence limit of the survey is 22 Jyms. We report the detection of FRB 180515 in our survey. We found no repeating FRBs in a total mean observation of 3hrs per pointing divided into one-hour intervals, which were separated in time ranging between a day to a month. Using our non-detection, we exclude the presence of a repeating FRB similar to FRB 121102 closer than $z=0.004$ in the survey area --- a volume of at least $9.4 \times 10^4$Mpc$^3$ --- at 95% confidence.

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S. Bhandari, K. W. Bannister, C. W. James, R. M. Shannon, C. M. Flynn, M. Caleb, J. D. Bunton. 2019-03-13. A Southern sky search for repeating Fast Radio Bursts using the Australian SKA Pathfinder. https://doi.org/10.1093/mnras%2Fstz804

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