Suzaku Observations of the Local and Distant Hot ISM

Suzaku observed the molecular cloud MBM 12 and a blank field less than $3^{\circ}$ away to separate the local and distant components of the diffuse soft X-ray background. Towards MBM 12, a local ( $D \lesssim 275 \,\mathrm{pc}$ ) O VII emission line was clearly detected with an intensity of $3.5 \;\mathrm{photons} \;\mathrm{cm}^{-2} \,\mathrm{s}^{-1} \,\mathrm{sr}^{-1}$ (or line units, LU), and the O VIII flux was ${