| Literature DB >> 35831603 |
Bridget C Andersen1,2, Kevin Bandura3,4, Mohit Bhardwaj1,2, P J Boyle1,2, Charanjot Brar1,2, Daniela Breitman5,6,7, Tomas Cassanelli6,7, Shami Chatterjee8, Pragya Chawla1,2, Jean-François Cliche1,2, Davor Cubranic9, Alice P Curtin1,2, Meiling Deng10,11, Matt Dobbs1,2, Fengqiu Adam Dong9, Emmanuel Fonseca1,2, B M Gaensler6,7, Utkarsh Giri10,12, Deborah C Good9, Alex S Hill11,13, Alexander Josephy1,2, J F Kaczmarek11, Zarif Kader1,2, Joseph Kania4,14, Victoria M Kaspi1,2, Calvin Leung15,16, D Z Li17, Hsiu-Hsien Lin18,19, Kiyoshi W Masui15,16, Ryan Mckinven6,7, Juan Mena-Parra15, Marcus Merryfield1,2, B W Meyers9, D Michilli20,21,22,23, Arun Naidu1,2, Laura Newburgh24, C Ng6, Anna Ordog11,13, Chitrang Patel1,6, Aaron B Pearlman1,2, Ue-Li Pen6,10,18,19,25, Emily Petroff1,2,26, Ziggy Pleunis1,2,6, Masoud Rafiei-Ravandi10,12, Mubdi Rahman27, Scott Ransom28, Andre Renard6, Pranav Sanghavi3,4, Paul Scholz6, J Richard Shaw9, Kaitlyn Shin15,16, Seth R Siegel1,2, Saurabh Singh1,2, Kendrick Smith10, Ingrid Stairs9, Chia Min Tan1,2, Shriharsh P Tendulkar29,30, Keith Vanderlinde6,7, D V Wiebe9, Dallas Wulf1,2, Andrew Zwaniga1,2.
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.Entities:
Year: 2022 PMID： 35831603 DOI： 10.1038/s41586-022-04841-8
Source DB: PubMed Journal: Nature ISSN： 0028-0836 Impact factor: 69.504