Possible periodic activity in the repeating FRB 121102
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Oxford University Press
Abstract
The discovery that at least some Fast Radio Bursts (FRBs) repeat has ruled out cataclysmic events as the progenitors of these particular bursts. FRB 121102 is the most well-studied repeating FRB but despite extensive monitoring of the source, no underlying pattern in the repetition has previously been identified. Here, we present the results from a radio monitoring campaign of FRB 121102 using the 76 m Lovell telescope. Using the pulses detected in the Lovell data along with pulses from the literature, we report a detection of periodic behaviour of the source over the span of 5 yr of data. We predict that the source is currently ‘off’ and that it should turn ‘on’ for the approximate MJD range 59002−59089 (2020 June 2 to 2020 August 28). This result, along with the recent detection of periodicity from another repeating FRB, highlights the need for long-term monitoring of repeating FRBs at a high cadence.
Description
Keywords
Surveys, Binaries: general, Radio continuum: transients, Fast Radio Bursts (FRBs)
Citation
Karastergiou, A. et al. (2020). Possible periodic activity in the repeating FRB 121102. Monthly Notices of the Royal Astronomical Society, 495(4), 3551–3558