Chandra grating spectra of SMC X-1: preparing for XRISM studies of HMXBs

SMC X-1 is a historic high mass X-ray binary that displays a variety of timing behaviors including ~0.7 second X-ray pulsations, an eclipsing 3.9 day binary orbit, and an unstable ~40-60 day superorbital period caused by precession of the warped inner accretion disk. High resolution X-ray spectroscopy offers the opportunity to examine the emission spectra of this source and track disk and stellar wind properties as a function of the orbital and superorbital period. In this talk we present an analysis of 10 archival Chandra HETG spectra of SMC X-1 at different orbital and superorbital phases. We also perform simulations of XRISM spectra of SMC X-1 at different luminosities to indicate the potential for XRISM to further constrain the emission spectra of SMC X-1 and investigate properties of warped accretion disks.