Analysis of X-ray observations of cataclysmic variable stars SW UMa and BZ UMa

In this work, we obtained X-ray spectra and periods (spin periods of white dwarf) of SW UMa ( ? = 08h 36m 42s.7; ? = + 53o 28' 38".1, mv = 9.7 mag.) and BZ UMa ( ? = 08h 53m 44s.17; ? = +57o 48' 40".6, mv = 10.5 mag.) cataclysmic variables by using data obtained with Suzaku satellite. X-ray spectra give us valuable information about the disc which is the source of X-ray emission, and about the structure of the boundary layer between the white dwarf and the disk. Hence, we investigated if the X-ray emission emanating from the boundary layer is basically thermal or magnetic in origin. In addition to X?ray data, with the help of optical observations of these systems we discussed the spectral types of secondary stars, their classes of cataclysmic variables and compared our results with the theoratical predictions.