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We present the first Suzaku observation of the new Soft Gamma Repeater SGR0501+4516, performed on 2008 August 26, four days after the onset of burstingactivity of this new member of the magnetar family. The soft X-ray persistentemission was detected with the X-ray Imaging Spectrometer (XIS) at a 0.5-10 keVflux of 3.8E-11 erg/s/cm2, with a spectrum well fitted by an absorbed blackbodyplus power-law model. The source pulsation was confirmed at a period of5.762072+/-0.2 s, and 32 X-ray bursts were detected by the XIS, four ofwhich were also detected at higher energies by the Hard X-ray Detector (HXD).The strongest burst, which occurred at 03:16:16.9 (UTC), was so bright that itcaused instrumental saturation, but its precursor phase, lasting for about 200ms, was detected successfully over the 0.5-200 keV range, with a fluence of~2.1E-7 erg/cm2 and a peak intensity of about 89 Crab. The entire burst fluenceis estimated to be ~50 times higher. The precursor spectrum was very hard, andwell modeled by a combination of two blackbodies. We discuss the burstingactivity and X/gamma-ray properties of this newly discovered Soft GammaRepeater in comparison with other members of the class.

Suzaku Observation of the New Soft Gamma Repeater SGR 0501+4516 in Outburst