Volvach, Alexandr https://orcid.org/0000-0002-3839-3466
Volvach, Larisa https://orcid.org/0000-0001-6157-003X
Larionov, Mikhail
Article Title: Characterizing Close Binary Supermassive Black Holes in Blazars 3C 273, 3C 454.3, S0528+134, and AO 0235+164: Insights from Multifrequency Radio Monitoring and Gravitational-wave Prospects
Journal Title: The Astrophysical Journal
Article Type: paper
Copyright Information: © 2025. The Author(s). Published by the American Astronomical Society.
Publication dates
Date Received: 2025-04-18
Date Accepted: 2025-08-22
Online publication date: 2025-10-06