J2102+6015
a potential distant multimessenger?
Leonid I. Gurvits (Joint Institute for VLBI ERIC, Astrodynamics & Space Missions)
Sándor Frey (Eötvös Loránd University, Konkoly Observatory Hungarian Academy of Sciences)
Máté Krezinger (Eötvös Loránd University, Konkoly Observatory Hungarian Academy of Sciences)
Oleg Titov (Geoscience Australia)
Tao An (Shanghai Astronomical Observatory Chinese Academy of Sciences)
Yingkang Zhang (Shanghai Astronomical Observatory Chinese Academy of Sciences)
Alexander G. Polnarev (Queen Mary University of London)
Krisztina Gabányi (Eötvös Loránd University, Konkoly Observatory Hungarian Academy of Sciences)
Krisztina Perger (Konkoly Observatory Hungarian Academy of Sciences)
Alexey Melnikov (Institute of Applied Astronomy of the Russian Academy of Sciences)
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Abstract
We 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.