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Published September 2019 | Accepted Version + Published
Journal Article Open

Commensal discovery of four fast radio bursts during Parkes Pulsar Timing Array observations

Abstract

The Parkes Pulsar Timing Array (PPTA) project monitors two dozen millisecond pulsars (MSPs) in order to undertake a variety of fundamental physics experiments using the Parkes 64-m radio telescope. Since 2017 June, we have been undertaking commensal searches for fast radio bursts (FRBs) during the MSP observations. Here, we report the discovery of four FRBs (171209, 180309, 180311, and 180714). The detected events include an FRB with the highest signal-to-noise ratio ever detected at the Parkes Observatory, which exhibits unusual spectral properties. All four FRBs are highly polarized. We discuss the future of commensal searches for FRBs at Parkes.

Additional Information

© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model). Accepted 2019 June 21. Received 2019 June 20; in original form 2019 May 16. Published: 28 June 2019. The Parkes radio telescope is part of the Australia Telescope, which is funded by the Commonwealth of Australia for operation as a National Facility managed by the Commonwealth Scientific and Industrial Research Organisation (CSIRO). This paper includes archived data obtained through the CSIRO Data Access Portal (http://data.csiro.au). The authors would like to thank Chris Flynn and Shivani Bhandari for helpful discussions. We are grateful to Amy Lien, Jeff Cooke, and Nicolas Tejos for help with considerations of rapid follow-up. Bill Coles was one of the early proponents of conducting this experiment during the PPTA observations and we thank him for the helpful discussions about the manuscript. We thank the referee for useful comments on the manuscript. SO, MB, and RS acknowledge Australian Research Council grant FL150100148. MB and RMS acknowledge Australian Research Council grant CE170400001. J-BW is supported by the Youth Innovation Promotion Association of Chinese Academy of Sciences. Work at NRL is supported by NASA. This research has made use of NASA's Astrophysics Data System.

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Published - stz1751.pdf

Accepted Version - 1906.09793.pdf

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Created:
August 19, 2023
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October 20, 2023