091279

We propose a hard X-ray look at the mini-BAL QSO PG 1126-041 with NuSTAR (120ks) and simultaneous with XMM (90ks) to study its accretion disk wind. This will be the first ever hard X-ray observation of this AGN whose line of sight intercepts multiple phases (UV soft X-ray and Fe K) of a variable wind originating on accretion disk scales. Detailed studies of AGN disk winds are rare here PG1126 resembles PDS456 the archetypical luminous AGN with a powerful accretion disk wind. The observations will: (i) measure the Fe K and hard X-ray wind profile allowing the fast wind energetics to be accurately derived (ii) probe rapid wind variability on timescales of tens of ks in the innermost disk and (iii) link all the phases of the wind from the UV to hard X-rays. [truncated! Please see actual data for full text]