Testing the fossil field hypothesis: could strongly magnetised OB stars produce all known magnetars?

Ekaterina I. Makarenko, Andrei P. Igoshev, A. F. Kholtygin

Stars of spectral types O and B produce neutron stars (NSs) after supernova explosions. Most of NSs are strongly magnetised including normal radio pulsars with $B\propto 10^{12}$…