Mapping the Emission Structure of the Brightest Magnetar comma 1E 1841-045

We propose a deep 80 ks observations of the magnetar, 1E 1841045 in order toperform phase resolved spectral analysis using physical magnetar emissionmodels. With this observation we will be able to construct the surfacetemperature and magnetic field topology, as well as the magnetospheric structureof this unique magnetar. Given that the persistent Xray emission properties of1E 1841045 do not vary significantly, we will employ recent NuSTARobservations, and perform broadband (0.579 keV) Xray spectroscopy of thesource. We will also be able to search for phase dependent spectral features andlow level magnetar bursts from 1E 1841045 with this data set. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]