A Study on the Intrinsic Absorption Model and the White Dwarf Masses Of Intermediate Polars

X-ray spectroscopy can be used to constrain shock temperatures and white dwarf (WD) masses in magnetic cataclysmic variables (mCVs), especially in- termediate polars (IPs). However, the previously inferred WD masses based on Suzaku observations are not fully consistent with the optical measured values, which could be due to the flaws when describing the intrinsic absorption of IPs. In this work, we introduce a new log-normal distributed absorption model to characterize the intrinsic absorption of IPs, and perform X-ray spectroscopy on archival Suzaku observations of IPs. Our results show satisfying chi2 values. More importantly, our inferred WD masses agree well with the optically determined values. We futher show the different treatment of intrinsic absorption could greatly affect the inferred WD masses in IPs.