Reprocessed X-Rays from the Disk and Highly Disrupted Wind of SMC X-1/Sk 160

The circumstellar environment of SMC X1 contains both a highly disruptedstellar wind and an accretion disk putting it in a class containing only threeXray pulsars. Xray reprocessing in this material provide a probe of this material. The small absorbing column density to SMC X1 and the excellentspectral sensitivity of XMM down to 350 eV make for an especially powerful probeof this material down to low ionization levels through spectral features fromK shell transitions in carbon, nitrogen, and oxygen. We propose one 50 ksecobservation of SMC X1 over an eclipse to study the extended wind and one 30ksec observation outside of eclipse to study material near the neutron star. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]