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Fig. 7


Characteristic spectrum expected from low-luminosity accretion onto a magnetic neutron star. The high-energy spectrum is produced in the radiative shock near the bottom of the accretion column. The parameters are: τ = 5, kTe = 50 keV, and B = 1012 G. We have added to it a blackbody spectrum of temperature kTBB = 0.5 keV such that its peak has the same height as the peak at 80 keV.

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