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VV Pup is typical system of AM Her stars, where the main accreting polerotates in and out of view during the orbital cycle. In the present paper wepresent ROSAT data analysis for the magnetic cataclysmic variable VV Pup. Weobtained the X-ray light curves of VV Pup in high state, the PSPC count rate0.1-2.0 keV is plotted as a function of time with bins of 10 sec and the countrate is folded over the orbital period of 100.4 min with bin size of 100 secfor individual observations. We calculate the mean best-fit PSPC spectrum, witha three-component spectral fit including a soft X-ray blackbody, hard X-raybremsstrahlung, and Gaussian line covers the phase intervals, for a brightphase (phi_orb=0.9-1.1), the dip data (phi_orb=0.18-0.7), the egress from thedip (phi_orb=0.7-0.8), the phase interval phi = 0.1-0.18 and the mean best-fitspectrum for all data (phi_orb=0.0-1.0). We calculate spectral parameters, thehardness ratios, count rate and total integrated black body flux.

Detailed ROSAT X-ray Analysis of the AM Her Cataclysmic Variable VV Pup