Abstract
The X-ray spectrum from a cool disk inside an ion supported torus is computed. A surface layer of the disk is heated by the protons from the torus. It produces a comptonized spectrum with a shape that is only very weakly dependent on the incident energy flux and the distance from the accreting compact object, and is similar to observed spectra. Further evidence for ‘ion illuminated’ disks are the Li abundance in the secondaries of low mass X-ray binaries and the 450 keV lines sometimes seen in black-hole transient spectra.
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© 1997 Springer-Verlag
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Spruit, H.C. (1997). X-ray spectrum of a disk illuminated by ions. In: Meyer-Hofmeister, E., Spruit, H. (eds) Accretion Disks — New Aspects. Lecture Notes in Physics, vol 487. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0105821
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DOI: https://doi.org/10.1007/BFb0105821
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