We present the results from the analysis of the broad-band X-ray spectra of 5
Anomalous X-ray Pulsars (AXPs) and Soft γ-ray Repeaters (SGRs). We fit
their Suzaku and INTEGRAL spectra with models appropriate for the X-ray
emission from the accretion flow onto a pulsar. We find that their X-ray
spectra can be well described with this model. In particular we find that: (a)
the radius of the accretion column is ∼150−350 m resulting in a transverse
optical depth of ∼1; (b) the vertical Thompson optical depth is ≈50−400, and (c) their luminosity translates in accretion rates
≈1015gs−1. These results are in good agreement with the
predictions from the fall-back disk model, providing further support in the
interpretation of AXPs and SGRs as accreting pulsars.Comment: Accepted for publication in MNRAS, 10 pages, 2 figure