Sub-second periodicity in a fast radio burst

Bridget C. Andersen, Kevin Bandura, Mohit Bhardwaj, P. J. Boyle, Charanjot Brar, Daniela Breitman, Tomas Cassanelli, Shami Chatterjee, Pragya Chawla, Jean-François Cliche, Davor Cubranic, Alice P. Curtin, Meiling Deng, Matt Dobbs, Fengqiu Adam Dong, Emmanuel Fonseca, B. M. Gaensler, Utkarsh Giri, Deborah C. Good, Alex S. Hill, Alexander Josephy, J. F. Kaczmarek, Zarif Kader, Joseph Kania, Victoria M. Kaspi, Calvin Leung, D. Z. Li, Hsiu-Hsien Lin, Kiyoshi W. Masui, Ryan Mckinven, Juan Mena-Parra, Marcus Merryfield, B. W. Meyers, D. Michilli (), Arun Naidu, Laura Newburgh, C. Ng, Anna Ordog, Chitrang Patel, Aaron B. Pearlman, Ue-Li Pen, Emily Petroff, Ziggy Pleunis, Masoud Rafiei-Ravandi, Mubdi Rahman, Scott Ransom, Andre Renard, Pranav Sanghavi, Paul Scholz, J. Richard Shaw, Kaitlyn Shin, Seth R. Siegel, Saurabh Singh, Kendrick Smith, Ingrid Stairs, Chia Min Tan, Shriharsh P. Tendulkar, Keith Vanderlinde, D. V. Wiebe, Dallas Wulf and Andrew Zwaniga
Additional contact information
Bridget C. Andersen: McGill University
Kevin Bandura: West Virginia University
Mohit Bhardwaj: McGill University
P. J. Boyle: McGill University
Charanjot Brar: McGill University
Daniela Breitman: University of Toronto
Tomas Cassanelli: University of Toronto
Shami Chatterjee: Cornell University
Pragya Chawla: McGill University
Jean-François Cliche: McGill University
Davor Cubranic: University of British Columbia
Alice P. Curtin: McGill University
Meiling Deng: Perimeter Institute for Theoretical Physics
Matt Dobbs: McGill University
Fengqiu Adam Dong: University of British Columbia
Emmanuel Fonseca: McGill University
B. M. Gaensler: University of Toronto
Utkarsh Giri: Perimeter Institute for Theoretical Physics
Deborah C. Good: University of British Columbia
Alex S. Hill: National Research Council Canada
Alexander Josephy: McGill University
J. F. Kaczmarek: National Research Council Canada
Zarif Kader: McGill University
Joseph Kania: West Virginia University
Victoria M. Kaspi: McGill University
Calvin Leung: Massachusetts Institute of Technology
D. Z. Li: California Institute of Technology
Hsiu-Hsien Lin: Academia Sinica
Kiyoshi W. Masui: Massachusetts Institute of Technology
Ryan Mckinven: University of Toronto
Juan Mena-Parra: Massachusetts Institute of Technology
Marcus Merryfield: McGill University
B. W. Meyers: University of British Columbia
D. Michilli: McGill University
Arun Naidu: McGill University
Laura Newburgh: Yale University
C. Ng: University of Toronto
Anna Ordog: National Research Council Canada
Chitrang Patel: McGill University
Aaron B. Pearlman: McGill University
Ue-Li Pen: University of Toronto
Emily Petroff: McGill University
Ziggy Pleunis: McGill University
Masoud Rafiei-Ravandi: Perimeter Institute for Theoretical Physics
Mubdi Rahman: Sidrat Research
Scott Ransom: Astronomy Observatory
Andre Renard: University of Toronto
Pranav Sanghavi: West Virginia University
Paul Scholz: University of Toronto
J. Richard Shaw: University of British Columbia
Kaitlyn Shin: Massachusetts Institute of Technology
Seth R. Siegel: McGill University
Saurabh Singh: McGill University
Kendrick Smith: Perimeter Institute for Theoretical Physics
Ingrid Stairs: University of British Columbia
Chia Min Tan: McGill University
Shriharsh P. Tendulkar: Tata Institute of Fundamental Research
Keith Vanderlinde: University of Toronto
D. V. Wiebe: University of British Columbia
Dallas Wulf: McGill University
Andrew Zwaniga: McGill University

Nature, 2022, vol. 607, issue 7918, 256-259

Abstract: Abstract Fast radio bursts (FRBs) are millisecond-duration flashes of radio waves that are visible at distances of billions of light years1. The nature of their progenitors and their emission mechanism remain open astrophysical questions2. Here we report the detection of the multicomponent FRB 20191221A and the identification of a periodic separation of 216.8(1) ms between its components, with a significance of 6.5σ. The long (roughly 3 s) duration and nine or more components forming the pulse profile make this source an outlier in the FRB population. Such short periodicity provides strong evidence for a neutron-star origin of the event. Moreover, our detection favours emission arising from the neutron-star magnetosphere3,4, as opposed to emission regions located further away from the star, as predicted by some models5.

Date: 2022
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DOI: 10.1038/s41586-022-04841-8

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