In this talk, I shall update my 16-year old claim that all the (thousands of) observed GRBs both long and short, repeating or (so far) not come from the surfaces of Galactic neutron stars, often called ’magnetars’, or ’throttled pulsars’.

Aims. Super magnetized neutron stars of ∼1015 G, magnetars, and magnetized protoneutron stars born after the magnetically-driven supernovae are likely to have very strong toroidal magnetic fields. Methods. Long-term, three-dimensional general relativistic magnetohydrodynamic simulations were performed to prepare isentropic neutron stars with toroidal magnetic fields in equilibrium as initial co...

Abstract The central engine of gamma-ray bursts (GRBs) remains an open and cutting-edge topic in the era multimessenger astrophysics. X-ray plateaus appear some GRB afterglows, which are widely considered to originate from spindown magnetars. According stable magnetar scenario GRBs, plateau a decay phase ∼ t −2 should afterglows. Meanwhile, “normal” afterglow is produced by external shock fireb...

— In the seconds after core collapse and explosion, a thermal neutrinodriven wind emerges from the cooling, deleptonizing newly-born neutron star. If the neutron star has a large-scale magnetar-strength surface magnetic field and millisecond rotation period, then the wind is driven primarily by magneto-centrifugal slinging, and only secondarily by neutrino interactions. The strong magnetic fiel...

Magnetars are young, magnetically powered neutron stars that possess the strongest magnetic fields in Universe. Fast radio bursts (FRBs) extremely intense millisecond-long pulses of primarily extragalactic origin, and a leading attribution for their genesis focuses on magnetars. A hallmark signature magnetars is emission bright, hard X-ray sub-second duration. On 27 April 2020, Galactic magneta...

Magnetars are a special subset of the isolated neutron star family, with X-ray and radio emission mainly powered by decay their immense magnetic fields. Many attributes magnetars remain poorly understood: spin-down glitches or sudden reductions in star’s angular momentum, bursts reminiscent extragalactic fast (FRBs) transient pulsed lasting months to years. Here we unveil detection large glitch...

Abstract Magnetars are neutron stars characterized by strong surface magnetic fields generally exceeding the quantum critical value of 44.1 TG. High-energy photons propagating in their magnetospheres can be attenuated QED processes like photon splitting and pair creation. In this paper, we compute opacities due to creation emitted anywhere magnetosphere a magnetar. Axisymmetric, twisted dipole ...