Cicone et al. (2018, ApJ)
ALMA observations of the neutral Carbon line ([CI]1-0) in NGC6240 shed light on the state of the gas entrained in the massive molecular outflow, hence allowing us to constrain its extreme energetics. Furthermore, the high-resolution ALMA [CI] images surprisingly reveal that the outflow is launched between the two AGNs rather than from either of the two. ADS link to the article.
Severgnini, Cicone et al. (2018, MNRAS)
The 123-month Swift-BAT monitoring of the nearby Seyfert galaxy MCG+11-11-032 reveals a modular behaviour with peaks and dips occurring almost every 25 months. Under the hypothesis of an SMBH pair, such variability would imply a small sub-pc separation with an orbital velocity of ~0.06c. This value is in remarkable agreement with the energy offset of the two FeK emission lines detected in the Swift XRT spectrum of this source.
ADS link to the article.