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arXiv · 2204.09090

Non-detection of CHIME/FRB sources with the Arecibo Observatory

Deborah C. Good·Pragya Chawla·Emmanuel Fonseca·Victoria Kaspi·B. W. Meyers·Ziggy Pleunis·Ketan R. Sand·Paul Scholz·I. H. Stairs·Shriharsh P. Tendulkar
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Abstract

In this work, we present follow-up observations of two known repeating fast radio bursts (FRBs) and seven non-repeating FRBs with complex morphology discovered with CHIME/FRB. These observations were conducted with the Arecibo Observatory 327 MHz receiver. We detected no additional bursts from these sources, nor did CHIME/FRB detect any additional bursts from these sources during our follow-up program. Based on these non-detections, we provide constraints on the repetition rate, for all nine sources. We calculate repetition rates above 1 Jy using both a Poisson distribution of repetition and the Weibull distribution of repetition presented by Oppermann et al. (2018). For both distributions, we find repetition upper limits of the order $λ= 10^{-2} - 10^{-1} \text{hr}^{-1}$ for all sources. These rates are much lower than those recently published for notable repeating FRBs like FRB 20121102A and FRB 20201124A, suggesting the possibility of a low-repetition sub-population.

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Deborah C. Good, Pragya Chawla, Emmanuel Fonseca, Victoria Kaspi, B. W. Meyers, Ziggy Pleunis, Ketan R. Sand, Paul Scholz, I. H. Stairs, Shriharsh P. Tendulkar. 2023-03-02. Non-detection of CHIME/FRB sources with the Arecibo Observatory. https://doi.org/10.3847/1538-4357%2Facb139

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