FRB 121102 Bursts at a Constant Rate per Log Time
Elisa Tabor, Abraham Loeb
TL;DR
This paper reveals that FRB 121102 exhibits a logarithmic burst repetition pattern with a rate decreasing inversely with time, suggesting a non-pulsar origin for repeating fast radio bursts.
Contribution
It identifies a novel logarithmic pattern in FRB 121102 bursts, challenging the assumption of periodicity and implying a different energy emission mechanism.
Findings
Burst rate decreases inversely with time
Repeating FRBs may not be pulsar-related
Energy output is consistent per log time
Abstract
Despite many searches for periodicity in the repeating fast radio burst FRB 121102, the underlying pattern of bursts does not appear to be a periodic one. We report a logarithmic repetition pattern in FRB 121102 in the sense that the rate falls off inversely with time for each set of bursts. This result implies that repeating FRB sources are not necessarily associated with a pulsar, but rather could be caused by a different type of phenomenon that involves an equal amount of energy output per log time.
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