Do we see accreting magnetars in X-ray pulsars?
High Energy Astrophysical Phenomena
2015-06-16 v1
Abstract
Strong magnetic field of accreting neutron stars ( G) is hard to probe by X-ray spectroscopy but can be indirectly inferred from spin-up/spin-down measurement in X-ray pulsars. The existing observations of slowly rotating X-ray pulsars are discussed. It is shown that magnetic fields of neutron stars derived from these observations (or lower limits in some cases) fall within the standard - G range. Claims about the evidence for accreting magnetars are critically discussed in the light of recent progress in understanding of accretion onto slowly rotating neutron stars in the subsonic regime.
Cite
@article{arxiv.1307.3032,
title = {Do we see accreting magnetars in X-ray pulsars?},
author = {K. A. Postnov and N. I. Shakura and A. Yu. Kochetkova and L. Hjalmarsdotter},
journal= {arXiv preprint arXiv:1307.3032},
year = {2015}
}
Comments
LaTeX, 6 pages,submitted to Proc. Int. Conf. Physics at the Magnetospheric Boundary, Geneva, Switzerland (25-28 June, 2013)