On the X-ray variability of magnetar 1RXS J170849.0-400910
Abstract
We present a long-term X-ray flux and spectral analysis for 1RXS J170849.0-400910 using Swift/XRT spanning over 8 years from 2005-2013. We also analyze two observations from Chandra and XMM in the period from 2003-2004. In this 10-yr period, 1RXS J170849.0-400910 displayed several rotational glitches. Previous studies have claimed variations in the X-ray emission associated with some of the glitches. From our analysis we find no evidence for significant X-ray flux variations and evidence for only low-level spectral variations. We also present an updated timing solution for 1RXS J170849.0-400910, from RXTE and Swift observations, which includes a previously unreported glitch at MJD 56019. We discuss the frequency and implications of radiatively quiet glitches in magnetars.
Cite
@article{arxiv.1401.5000,
title = {On the X-ray variability of magnetar 1RXS J170849.0-400910},
author = {P. Scholz and R. F. Archibald and V. M. Kaspi and C. -Y. Ng and A. P. Beardmore and N. Gehrels and J. A. Kennea},
journal= {arXiv preprint arXiv:1401.5000},
year = {2015}
}
Comments
9 pages, 2 figures, accepted for publication in ApJ