期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 508, 期 2, 页码 1947-1953出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stab2692
关键词
pulsars: general; pulsars: individual: B0531+21; fast radio bursts
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC) [RGPIN-2019-067, CRD 523638-201]
- Ontario Research Fund-Research Excellence Program (ORFRE)
- Canadian Institute for Advanced Research (CIFAR)
- Canadian Foundation for Innovation (CFI)
- Simons Foundation
- Thoth Technology Inc.
- Alexander von Humboldt Foundation
- Canada Foundation for Innovation
- Government of Ontario
- Ontario Research Fund-Research Excellence
- University of Toronto
A new spectral-fitting technique was used to identify 6 narrow-band giant pulses from the Crab pulsar out of 1578 total pulses, suggesting a potential connection between fast radio bursts (FRBs) and giant pulses of pulsars due to similar narrow-band features.
We used a new spectral-fitting technique to identify a subpopulation of 6 narrow-band giant pulses from the Crab pulsar out of a total of 1578. These giant pulses were detected in 77 min of observations with the 46-m dish at the Algonquin Radio Observatory at 400-800 MHz. The narrow-band giant pulses consist of both main- and inter-pulses, thereby being more likely to be caused by an intrinsic emission mechanism as opposed to a propagation effect. Fast radio bursts (FRBs) have demonstrated similar narrow-band features, while only little has been observed in the giant pulses of pulsars. We report the narrow-band giant pulses with Delta v/v of the order of 0.1, which is close to the value of 0.05 reported for the repeater FRB 20190711A. Hence, the connection between FRBs and giant pulses of pulsars is further established.
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