1 research outputs found
Observing superluminous supernovae and long gamma ray bursts as potential birthplaces of repeating fast radio bursts
Superluminous supernovae (SLSNe) and long gamma ray bursts (LGRBs) have been
proposed as progenitors of repeating Fast Radio Bursts (FRBs). In this
scenario, bursts originate from the interaction between a young magnetar and
its surrounding supernova remnant (SNR). Such a model could explain the
repeating, apparently non-Poissonian nature of FRB121102, which appears to
display quiescent and active phases. This bursting behaviour is better
explained with a Weibull distribution, which includes parametrisation for
clustering. We observed 10 SLSNe/LGRBs for 63 hours, looking for repeating FRBs
with the Effelsberg-100 m radio telescope, but have not detected any bursts. We
scale the burst rate of FRB121102 to an FRB121102-like source inhabiting each
of our observed targets, and compare this rate to our upper burst rate limit on
a source by source basis. By adopting a fiducial beaming fraction of 0.6, we
obtain 99.99\% and 83.4\% probabilities that at least one, and at least half of
our observed sources are beamed towards us respectively. One of our SLSN
targets, PTF10hgi, is coincident with a persistent radio source, making it a
possible analogue to FRB121102. We performed further observations on this
source using the Effelsberg-100~m and Parkes-64~m radio telescopes. Assuming
that PTF10hgi contains an FRB121102-like source, the probabilities of not
detecting any bursts from a Weibull distribution during our observations are
14\% and 16\% for Effelsberg and Parkes respectively. We conclude by showing
that a survey of many short observations increases burst detection probability
for a source with Weibull distributed bursting activity.Comment: 11 pages, 5 figure