2 papers
astro-ph.CO2025
Milliarcsecond astrometric oscillations in active galactic nuclei as a precursor of multi-messenger gravitational wave events
Leonid I. Gurvits, Alexander G. Polnarev, Sandor Frey +4
The existence of supermassive black hole binaries (SMBHBs) is predicted by various cosmological and evolutionary scenarios for active galactic nuclei. These objects are considered…
astro-ph.IM2025
Parallactic delay for geodetic VLBI and non-orthogonality of the fundamental axes
Oleg Titov, Angelina Osetrova
The Gaia optical astrometric mission has measured the precise positions of millions of objects in the sky, including extragalactic sources also observed by Very Long Baseline Inter…