VLA/Realfast Detection of a Burst from FRB180916.J0158+65 and Tests for Periodic Activity

Abstract

We report on the detection of a burst from FRB180916 by realfast/VLA and present software for interpreting fast radio bursts (FRB) periodicity. We demonstrate a range of periodicity analyses with bursts from FRB180916, FRB121102 and FRB180814. Our results for FRB180916 and FRB121102 are consistent with published results. For FRB180814, we did not detect any significant periodic episodes. The realfast-detected and other high-frequency bursts for FRB180916 tend to lie at the beginning of the activity window, indicating a possible phase-frequency relation. The python package $\text{frbpa}$ can be used to reproduce and expand on this analysis to test models for repeating FRBs.

Published in Research Notes of the AAS

References in corpus (2)

• A repeating fast radio burst source localised to a nearby spiral galaxy
• Possible periodic activity in the repeating FRB 121102

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