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most citedGRB Radiative Efficiencies Derived from the Swift Data: GRBs vs. XRFs, Long vs. Short

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astro-ph2003

A Massive X-Ray Outflow from the Quasar PDS 456

James Reeves, Paul O'Brien, Martin Ward

We report on XMM-Newton spectroscopic observations of the luminous, radio-quiet quasar PDS 456. The hard X-ray spectrum of PDS 456 shows a deep absorption trough (constituting 50%…