Origin of magnetars in binary systems
arXiv:1507.08192
Abstract
I review several scenarios of magnetar formation in binary systems via spin-up of a progenitor due to interaction with its companion. Mostly, these evolutionary channels lead to formation of isolated magnetars, and indeed, all well-established sources of this class are single objects. However, some binaries can survive, and several candidates to accreting magnetars have been proposed. I discuss this issue, and conclude that new accretion models can explain properties of the proposed candidates without large magnetic field in correspondence with models of magnetic field evolution.
arXiv comment10 pages, no figures, based on a talk presented at "Ioffe Workshop on GRBs and other transient sources: 20 Years of Konus-Wind Experiment", subm. to a special issue of Astron. Astrophys. Trans