%0 Journal Article
%T Population synthesis of young isolated neutron stars: the effect of fallback disk accretion and magnetic field evolution
%A Lei Fu
%A Xiang-Dong Li
%J Physics
%D 2013
%I arXiv
%R 10.1088/0004-637X/775/2/124
%X The spin evolution of isolated neutron stars (NSs) is dominatd by their magnetic fields. The measured braking indices of young NSs show that the spin-down mechanism due to magnetic dipole radiation with constant magnetic fields is inadequate. Assuming that the NS magnetic field is buried by supernova fallback matter and re-emerges after accretion stops, we carry out Monte-Carlo simulation of the evolution of young NSs, and show that most of the pulsars have the braking indices ranging from -1 to 3. The results are compatible with the observational data of NSs associated with supernova remnants. They also suggest that the initial spin periods of NSs might occupy a relatively wide range.
%U http://arxiv.org/abs/1308.3011v1