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

Author:

Osłowski S1ORCID,Shannon R M1,Ravi V2,Kaczmarek J F3ORCID,Zhang S4356,Hobbs G3ORCID,Bailes M1,Russell C J3,van Straten W7ORCID,James C W8ORCID,Jameson A1,Mahony E K3,Kumar P1ORCID,Andreoni I21ORCID,Bhat N D R8,Burke-Spolaor S910,Dai S3,Dempsey J11,Kerr M12ORCID,Manchester R N3,Parthasarathy A1ORCID,Reardon D1ORCID,Sarkissian J M3,Spiewak R1,Toomey L3,Wang J-B13,Zhang L1453,Zhu X-J15ORCID

Affiliation:

1. Centre for Astrophysics and Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122, Australia

2. Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA

3. CSIRO Astronomy and Space Science, Australia Telescope National Facility, Box 76, Epping, NSW 1710, Australia

4. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China

5. University of Chinese Academy of Sciences, Beijing 100049, China

6. International Centre for Radio Astronomy Research, University of Western Australia, Crawley, WA 6009, Australia

7. Institute for Radio Astronomy and Space Research, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand

8. International Centre for Radio Astronomy Research, Curtin University, Bentley, WA 6102, Australia

9. Department of Physics and Astronomy, West Virginia University, PO Box 6315, Morgantown, WV 26506, USA

10. Center for Gravitational Waves and Cosmology, West Virginia University, Chestnut Ridge Research Building, Morgantown, WV 26505, USA

11. CSIRO Information Management and Technology, GPO Box 1700, Canberra, ACT 2601, Australia

12. Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC 20375, USA

13. Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1-Street, Urumqi, Xinjiang 830011, China

14. National Astronomical Observatories, Chinese Academy of Sciences, A20 Datun Road, Chaoyang District, Beijing 100101, China

15. School of Physics and Astronomy, Monash University, Clayton, VIC 3800, Australia

Abstract

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.

Funder

Commonwealth Scientific and Industrial Research Organisation

Australian Research Council

Chinese Academy of Sciences

U.S. Naval Research Laboratory

National Aeronautics and Space Administration

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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