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We present Suzaku observations of the Galactic black hole candidate SwiftJ1753.5-0127 in the low-hard state. The broadband coverage of Suzaku enables usto detect the source over the energy range 0.6 -- 250 keV. The broadbandspectrum (2 -- 250 keV) is found to be consistent with a simple power-law(gamma \sim 1.63). In agreement with previous observations of this system, asignificant excess of soft X-ray flux is detected consistent with the presenceof a cool accretion disc. Estimates of the disc inner radius infer a valueconsistent with the ISCO (R_{in} \lesssim 6 R_g, for certain values of, e.g.N_H, i), although we cannot conclusively rule out the presence of an accretiondisc truncated at larger radii (R_{in} \sim 10 - 50 R_g). A weak,relativistically-broadened iron line is also detected, in addition to discreflection at higher energy. However, the iron-K line profile favours an innerradius larger than the ISCO (R _{in} \sim 10 - 20 R_g). The implications ofthese observations for models of the accretion flow in the low-hard state arediscussed.

Suzaku broadband spectroscopy of Swift J1753.5-0127 in the Low-Hard State