  The broad-band 1-300 keV Suzaku spectrum of IGR J17497-2821, the X-ray
transient discovered by INTEGRAL in September 2006, is presented. Suzaku
observed IGR J17497-2821 on September 25, eight days after its discovery, for a
net exposure of about 53 ksec. During the Suzaku observation, IGR J17497-2821
is very bright, 2 x 10^37 erg/s at 8 kpc in the 1-300 keV range, and shows a
hard spectrum, typical of black hole candidates in the low-hard state. Despite
the multi-mission X-ray monitoring of the source, only with Suzaku is it
possible to obtain a broad-band spectrum in the 1-300 keV range with a very
high signal to noise ratio. A sum of a multi-color disc (DISKBB) and a thermal
Comptonization component (COMPPS) with mild reflection is a good representation
of our IGR J17497-2821 Suzaku spectrum. The spectral properties of the
accretion disc as well as the cut-off energy in the spectrum at about 150 keV
are clearly detected and constrained. We discuss the implications on the
physical model used to interpret the data and the comparison with previous
results.
