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43 papers
Concise Spectrotemporal Studies of Magnetar SGR J1935+2154 Bursts
Ozge Keskin, Ersin Gogus, Yuki Kaneko +6
SGR J1935+2154 has truly been the most prolific magnetar over the last decade: It has been entering into burst active episodes once every 1-2 years since its discovery in 2014, it…
Quasi-Periodic Peak Energy Oscillations in X-ray Bursts from SGR J1935+2154
Oliver J. Roberts, Matthew G. Baring, Daniela Huppenkothen +6
Magnetars are young neutron stars powered by the strongest magnetic fields in the Universe (10 G). Their transient X-ray emission usually manifests as short (a few hundre…
Fermi-GBM Observations of the SGR J1935+2154 Burst Forest
Yuki Kaneko, Ersin Gogus, Matthew G. Baring +7
During 2020 April and May, SGR J1935+2154 emitted hundreds of short bursts and became one of the most prolific transient magnetars. At the onset of the active bursting period, a 13…
Persistent Emission Properties of SGR J1935+2154 During Its 2020 Active Episode
Ersin Gogus, Matthew G. Baring, Chryssa Kouveliotou +6
We present detailed spectral and temporal characteristics of the persistent X-ray emission of SGR J1935+2154 based on our XMM-Newton and Chandra observations taken in the aftermath…
Fermi/GBM View of the 2019 and 2020 Burst Active Episodes of SGR J1935+2154
Lin Lin, Ersin Gogus, Oliver J. Roberts +5
We present temporal and time-integrated spectral analyses of 148 bursts from the latest activation of SGR J1935+2154, observed with Fermi/GBM from October 4th 2019 through May 20th…
Broadband X-ray Burst Spectroscopy of the FRB-Emitting Galactic Magnetar
G. Younes, M. G. Baring, C. Kouveliotou +22
Magnetars are young, magnetically-powered neutron stars possessing the strongest magnetic fields in the Universe. Fast Radio Bursts (FRBs) are extremely intense millisecond-long ra…