€Intermediate Polars spin variability can be explained in several ways (much
debate on this over the years)
–visibility
of the accretion region on the white dwarf
–visibility
of the accretion ³curtains²
–reprocessing
of flux on the disk (optical/UV)
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€From studies of the relative phasing in different
wavelength bands and including to the absorption effects now known to be a combination
of the above models leading to the complex behaviour in Intermediate Polar light curves