How to detect super-massive binary black holes at parsec scales

Abstract

It is difficult to find or identifying the binary black holes in parsec scales, since the dual AGN may be merged quickly. It is required to explore more possibilities to identifying binary black holes in parsec scales, we give some discussions, especially with the VLBI methods.

2 pages, 1 figure, for Proceedings of IAU Symposium No. 312, 2015

References in corpus (2)

• A Compact Supermassive Binary Black Hole System
• Constraining Sub-Parsec Binary Supermassive Black Holes in Quasars with Multi-Epoch Spectroscopy. II. The Population with Kinematically Offset Broad Balmer Emission Lines