Measuring the High Energy Emission of Millisecond X-Ray Pulsars in Outburst

We propose to perform two 170 ks INTEGRAL ToO observations of a transientmillisecond Xray pulsar in outburst. To constrain the broadband spectrum wealso request one 30 ks simultaneous NuSTAR and two 50 ks XMMNewtonobservations. The target can be either one of the fifteen known transientaccreting millisecond Xray pulsars (AMXPs) in the case of a new outburst or anewly observed object of this class. These observations allow us to study thebroad band spectrum in detail from hard to soft Xray energies as well as thetiming properties or eclipsing features of the source during its outburst. Wewill detect typeI Xray bursts, and/or for the first time also burstoscillations at highenergy (if present). truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]