Prospects for Observing Supermassive Binary Black Holes by the Space-Ground Radio Interferometer

A list of the candidate supermassive binary black holes, compiled on the basis of available data on variability in the optical band and the shape of the emission spectrum, is analyzed. To estimate the radiation flux at the frequency 240 GHz, an artificial neural network was created. For the candidate supermassive binary black holes for which the network construction procedure turned out to be successful, the criterion for the possibility of observing the source at the Millimetron Space Observatory was tested. The study results are presented in the form of a table of 17 candidate supermassive binary black holes. Confirmation (or rejection) of the binarity of these objects during observations by a space interferometer with parameters similar to those of the Millimetron Space Observatory will be an important milestone in the development of the theory of galaxy formation.