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We analyzed Suzaku and Chandra observations of the soft diffuse X-raybackground toward four sightlines with the goal of characterizing the X-rayemission from the Milky Way circumgalactic medium (CGM). We identified twothermal components of the CGM, one at a uniform temperature of $\rm kT =0.176\pm0.008 ~keV$ and the other at temperatures ranging between $\rm kT =0.65-0.90~ keV$. The uniform lower temperature component is consistent with theGalaxy's virial temperature ($ \sim10^{6}~ K$). The temperatures of the hottercomponents are similar to that recently discovered ($\rm \sim 10^{7}~ K$; Daset al.) in the sightline to blazar 1ES1553+113, passing close to the Fermibubble. Alternatively, the spectra can be described by just onelower-temperature component with super-solar Neon abundance, once again similarto that found in the 1ES1553+113 sightline. The additional hot component or theoverabundance of Ne is required at a significance of $>4\sigma$, but we cannotdistinguish between the two possibilities. These results show that thesuper-virial temperature gas or an enhanced Ne abundance in the warm-hot gas inthe CGM is widespread, and these are not necessarily related to the Fermibubble.

Super-virial temperature or Neon overabundance?: Suzaku observations of the Milky Way circumgalactic Medium