Fast radio bursts, arriving at Earth from distant galaxies, usually have durations of a few milliseconds or more. Now, data on a source of repeating fast radio bursts have been revisited, with much higher time resolution than before, and burst signals are seen that last only a few microseconds — showing that the properties of fast radio bursts are more diverse than previously thought.
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References
Petroff, E., Hessels, J. W. T. & Lorimer, D. R. Fast radio bursts at the dawn of the 2020s. Astron. Astrophys. Rev. 30, 2 (2022). A recent review article about FRBs.
Lorimer, D. R., Bailes, M., McLaughlin, M. A., Narkevic, D. J. & Crawford, F. A bright millisecond radio burst of extragalactic origin. Science 318, 777–780 (2007). This paper reports the discovery of the FRB phenomenon.
Nimmo, K. et al. Burst timescales and luminosities as links between young pulsars and fast radio bursts. Nat. Astron. 6, 393–401 (2022). This paper reports sub-microsecond intensity variations during an FRB.
Spitler, L. G. et al. A repeating fast radio burst. Nature 531, 202–205 (2016). This paper reports the discovery of the first-known repeating FRB source.
Gajjar, V. et al. Highest frequency detection of FRB 121102 at 4–8 GHz using the Breakthrough Listen digital backend at the Green Bank Telescope. Astrophys. J. 863, 2 (2018). This paper describes the observation and data set that was used in our work presented here.
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This is a summary of: Snelders, M. P. et al. Detection of ultra-fast radio bursts from FRB 20121102A. Nat. Astro. https://doi.org/10.1038/s41550-023-02101-x (2023).
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Fast radio bursts that last only a few microseconds. Nat Astron 7, 1425–1426 (2023). https://doi.org/10.1038/s41550-023-02109-3
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DOI: https://doi.org/10.1038/s41550-023-02109-3
