Absence of bursts between 4-8 GHz from FRB20200120E located in an M81 Globular Cluster

Aaron B. Pearlman; Andrew P. V. Siemion; Daniele Michilli; Jakob T. Faber; Ketan R. Sand; Paul Scholz; Sabrina Berger; Steve Croft; Vishal Gajjar

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Absence of bursts between 4-8 GHz from FRB20200120E located in an M81 Globular Cluster

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arxiv 2107.09445 v1 pith:UPWANO4K submitted 2021-07-17 astro-ph.HE

Absence of bursts between 4-8 GHz from FRB20200120E located in an M81 Globular Cluster

Vishal Gajjar , Daniele Michilli , Jakob T. Faber , Sabrina Berger , Steve Croft , Aaron B. Pearlman , Ketan R. Sand , Paul Scholz

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Andrew P. V. Siemion

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We report the non-detection of dispersed bursts between 4 - 8 GHz from 2.5 hours of observations of FRB20200120E at 6 GHz using the Robert C. Byrd Green Bank Telescope. Our fluence limits are several times lower than the average burst fluences reported at 600 and 1400 MHz. We conclude that these non-detections are either due to high-frequency bursts being weaker and/or scintillation-induced modulated. It is also likely that our observations were non-concurrent with any activity window of FRB20200120E.

Absence of bursts between 4-8 GHz from FRB20200120E located in an M81 Globular Cluster

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