Modeling the broadband persistent emission of magnetars
Abstract
In this paper, we discuss our first attempts to model the broadband persistent emission of magnetars within a self consistent, physical scenario. We present the predictions of a synthetic model that we calculated with a new Monte Carlo 3-D radiative code. The basic idea is that soft thermal photons (e.g. emitted by the star surface) can experience resonant cyclotron upscattering by a population of relativistic electrons threated in the twisted magnetosphere. Our code is specifically tailored to work in the ultra-magnetized regime; polarization and QED effects are consistently accounted for, as well different configurations for the magnetosphere. We discuss the predicted spectral properties in the 0.1-1000 keV range, the polarization properties, and we present the model application to a sample of magnetars soft X-ray spectra.
Keywords
Cite
@article{arxiv.1008.1537,
title = {Modeling the broadband persistent emission of magnetars},
author = {Silvia Zane and Roberto Turolla and Luciano Nobili and Nanda Rea},
journal= {arXiv preprint arXiv:1008.1537},
year = {2015}
}
Comments
14 pages, 7 figures, to be published in Advances in Space Research. Proceedings of the conference "Frontieres of Space Astrophysics, Neutron Stars & Gamma Ray Bursts", Cairo/Alexandria, 30 March- 4 April 2009