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Until recently, it has been possible only for nearby galaxies to study thescaling relations between central black hole and host galaxy in detail. Becauseof the small number densities at low redshift, (luminous) AGN areunderrepresented in such detailed studies. The advent of adaptive optics (AO)at large telescopes helps overcoming this hurdle, allowing to reach smalllinear scales over a wide range in redshift. Finding AO-suitable targets, i.e.,AGN having a nearby reference star, and carrying out an initial multiwavelengthclassification is an excellent use case for the Virtual Observatory. We presentour Virtual-Observatory approach to select an AO-suitable catalog ofX-ray-emitting AGN at redshifts 0.1<z<1.

Using Virtual Observatory techniques to search for Adaptive Optics suitable AGN