A MeerKAT, e-MERLIN, H.E.S.S. and Swift search for persistent and transient emission associated with three localised FRBs
- Chibueze, J. O.
- Caleb, M.
- Spitler, L.
- Ashkar, H.
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- Stappers, B. W.
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- Heywood, I.
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- Malenta, M.
- Mickaliger, M.
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- Jankowsky, F.
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- Muller, J.
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- de Naurois, M.
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- Wong, Yu Wun
- Yusafzai, A.
- Zacharias, M.
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DOIAbstract
International audienceWe report on a search for persistent radio emission from the one-off Fast Radio Burst (FRB) 20190714A, as well as from two repeating FRBs, 20190711A and 20171019A, using the MeerKAT radio telescope. For FRB 20171019A we also conducted simultaneous observations with the High Energy Stereoscopic System (H.E.S.S.) in very high energy gamma rays and searched for signals in the ultraviolet, optical, and X-ray bands. For this FRB, we obtain a UV flux upper limit of 1.39 × 10-16erg cm-2 s-1Å-1, X-ray limit of ~6.6 × 10-14erg cm-2 s-1 and a limit on the very-high-energy gamma-ray flux Φ(E > 120 GeV) -12 erg cm-2 s-1. We obtain a radio upper limit of ~15μJy beam-1 for persistent emission at the locations of both FRBs 20190711A ...
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