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Testing afterglow models of FRB 200428 with early post-burst observations of SGR 1935 + 2154
ABSTRACT We present LOFAR imaging observations from the April/May 2020 active episode of magnetar SGR 1935 + 2154. We place the earliest radio limits on persistent emission following the low-luminosity fast radio burst FRB 200428 from the magnetar. We also perform an image-plane search for transient emission and find no …