An X-ray View on Cataclysmic Variables in Solar Neighborhood and in the Galaxy Bulge

We have carried out a systematic investigation on the population of Cataclysmic Variables (CVs) in solar neighborhood and in the Galaxy bulge (GB). The Fe emission lines, the shock temperature and the white dwarf masses were compared and correlations were drawn for a sample of Suzaku observed local CVs. Based on the Fe line ratio, we conclude that the Galactic Bulge X-ray Emission (GBXE) is dominated by non-magnetic CVs, or dwarf novae (DNe). From the Fe line ratio - WD mass - shock temperature correlation, the mean WD mass of CVs in the GBXE was determined to be 0.8 solar mass, which is consistent with the value of WDs in local CVs.