093082

MS 22549-3712 is a unique AGN that shows both a quasi-periodic oscillation (QPO)and X-ray reflection and reverberation from the inner accretion disk. QPOs holdthe potential to probe General Relativity and the detailed physics of theaccretion process onto black holes and to provide independent constraints onthe black hole spin. Taking advantage of QPOs however requires a detailedunderstanding of the mechanism by which they are produced. We request deepsimultaneous observations of MS 22549-3712 using NuSTAR and XMM-Newton to takeadvantage of the X-ray reflection and reverberation in this AGN to probe theorigin of the QPO by studying how the QPO corresponds to variability of theinner accretion disk and/or corona. [truncated! Please see actual data for full text]