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.
CITATION STYLE
Liu, X. (2016). How to detect supermassive binary black holes at parsec scales. In Proceedings of the International Astronomical Union (Vol. 10, pp. 77–78). Cambridge University Press. https://doi.org/10.1017/S1743921315007553
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