http://arxiv.org/abs/2203.09066
We argue that measurements of X-ray polarization using the recently launched Imaging X-ray Polarimetry Explorer will answer many open questions about magnetars in particular the physical state of their surfaces, whether vacuum birefringence exists, and the nature of the hard X-ray emission from these objects. We outline the capabilities of the instrument, specific models and the results of simulations for the magnetar 4U~0142+61.
J. Heyl, I. Caiazzo and D. González-Caniulef
Fri, 18 Mar 22
47/66
Comments: 12 pages, 7 figures, Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution, Proceedings IAU Symposium No. 363, 2022, E. Troja & M. Baring, eds