Absence of Bursts between 4 and 8 GHz from FRB 20200120E Located in an M81 Globular Cluster

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

Abstract

We report the non-detection of dispersed bursts between 4 and 8 GHz from 2.5 hr of observations of FRB 20200120E 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 FRB 20200120E.

Additional Information

© 2021. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received July 2021; Accepted July 2021; Published July 2021. Breakthrough Listen is managed by the Breakthrough Initiatives, sponsored by the Breakthrough Prize Foundation. The Green Bank Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc. J.T.F. and S.C. were supported by the National Science Foundation under grant No. 1950897.

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