A Search for MeV to TeV Neutrinos from Fast Radio Bursts with IceCube
M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M., Ahrens, C. Alispach, K. Andeen, T. Anderson, I. Ansseau, G. Anton, C., Arg\"uelles, J. Auffenberg, S. Axani, P. Backes, H. Bagherpour, X. Bai, A., Balagopal V., A. Barbano, S. W. Barwick, B. Bastian, V. Baum
TL;DR
This paper reports on two searches for neutrinos associated with fast radio bursts using IceCube, setting new upper limits on neutrino emissions across MeV to TeV energies, with no significant detections.
Contribution
It presents the first limits on FRB neutrino emission at MeV energies and significantly improves constraints at higher energies compared to previous studies.
Findings
No significant neutrino-FRB correlation found.
Set upper limits on neutrino flux from FRBs across multiple energy ranges.
Improved sensitivity by an order of magnitude at energies above 50 GeV.
Abstract
We present two searches for IceCube neutrino events coincident with 28 fast radio bursts (FRBs) and one repeating FRB. The first improves upon a previous IceCube analysis -- searching for spatial and temporal correlation of events with FRBs at energies greater than roughly 50 GeV -- by increasing the effective area by an order of magnitude. The second is a search for temporal correlation of MeV neutrino events with FRBs. No significant correlation is found in either search, therefore, we set upper limits on the time-integrated neutrino flux emitted by FRBs for a range of emission timescales less than one day. These are the first limits on FRB neutrino emission at the MeV scale, and the limits set at higher energies are an order-of-magnitude improvement over those set by any neutrino telescope.
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