Tell-tale Spectral Signatures of MHD-driven Ultrafast Outflows in AGNs

Abstract We aim to explore spectral signatures of the predicted multi-ion ultrafast outflows (UFOs) in broadband X-ray spectra active galactic nuclei by exploiting an accretion disk-wind model context a simple magnetohydrodynamic (MHD) framework. are focused primarily on examining dependences number key properties: (1) ionizing luminosity ratio ? ion , (2) line-of-sight wind density slope p (3) optical/UV-to-X-ray strength ? OX (4) inclination ? (5) photon index ?, and (6) factor f D . With emphasis radio-quiet Seyferts sub-Eddington regime, UFO systematically calculated as function these parameters show that MHD-driven UFOs imprint unique asymmetric absorption line profile with pronounced blue tail structure average. Such characteristic signature is generic simplified MHD models presented this work due their specific kinematics structure. The properties profiles could be utilized diagnostics distinguish between different wind-driving mechanisms or even values given parameters. also present high-fidelity microcalorimeter simulations anticipation upcoming XRISM/Resolve Athena/X-IFU instruments demonstrate such “tell-tale” sign may immune contamination presence additional warm absorbers partially covering gas.