PHYSICAL CONSTRAINTS FROM AGN X-RAY SPECTRA: A PILOT NUSTAR-XMM STUDY OF EROSITA

The eROSITA instrument onboard SpectrumRoentgenGamma (SRG) has performedthe first imaging allsky survey in the hard Xray (210keV) band. Thefinal survey will be over 30 times deeper than previous hard Xray surveys,yielding a large and very pure sample of AGN. Combining eROSITA data withobservations from other multiwavelength missions, a detailed pictureof the AGN population can be constructed. We propose simultaneous NuSTAR+XMMfollow up observations of a group of hard Xray selected AGN observed witheROSITA. This pilot study will demonstrate the power of joint NuSTAR andXMM observations to break degeneracies present in different spectral models,motivating future joint NuSTAR, XMM and eROSITA investigations. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]