Cambridge University Press, Proceedings of the International Astronomical Union, S375(17), p. 86-90, 2021
DOI: 10.1017/s1743921323001151
Full text: Unavailable
AbstractWe present and briefly discuss results of several studies of the source J2102+6015 with tentatively defined redshift z = 4.575 which demonstrates unusual properties in imaging and astrometric VLBI observations. Its properties might be considered as indications on the supermassive black hole binary which can be considered as a so far rare example of a high-redshift source of known electromagnetic and, possibly, predictable gravitational wave emissions.