About J1334-5839
J1334-5839 is an uncommon pulsar. It spins once every 107.718 ms, has a dispersion measure of 119.3 pc cm⁻³ and carries a surface magnetic field around 4.88×10^10 G.
The collapsed core of a star that exploded: about one and a half Suns of matter crushed into a ball the size of a city, held up only by the refusal of neutrons to be squeezed further.