Tootfinder

Magnetars in Binaries as the Engine of Actively Repeating Fast Radio Bursts
Bing Zhang (HKU,UNLV), Rui-Chong Hu (UNLV)
https://arxiv.org/abs/2508.12119 https://

Magnetars in Binaries as the Engine of Actively Repeating Fast Radio Bursts
The association between FRB 20200428D and the Galactic magnetar SGR J1935+2154 makes magnetars the leading engine of cosmological fast radio bursts (FRBs). However, there is a list of puzzles for this magnetar-for-all-FRBs scenario: known Galactic magnetars are all isolated and none of them are active repeaters; some cosmological repeaters have extremely high repetition rates but without any measurable spin-related periodicity; some show long-term periodic active windows; and some show diverse …