Does magnetized OB stars produce magnetars ?

Most of NSs are strongly magnetized including normal radio pulsars with B {prop.to} 1012 G and magnetars with B {prop.to} 10^14^ G. A fraction of 7-12 per cent of massive stars are also magnetized with B {prop.to} 103 G and some are weakly magnetized with B {prop.to} 1 G. It was suggested that magnetic fields of NSs could be the fossil remnants of magnetic fields of their progenitors.

This work is dedicated to study this hypothesis. First, we gather all modern precise measurements of surface magnetic fields in O, B, and A stars. Secondly, we estimate parameters for lognormal distribution of magnetic fields in B stars and found {mu}B = 2.83 +/- 0.1 log10 (G), {sigma}B = 0.65 +/- 0.09 for strongly magnetized and {mu}B = 0.14 +/- 0.5 log10 (G), {sigma} = 0.7_-0.27_^+0.57^ for weakly magnetized.