A close nuclear black-hole pair in the spiral galaxy NGC 3393

Broad-Band Temporal and Spectral Variation of 36 Active Galactic Nuclei Observed with Suzaku

(2014) Takuya Miyazawa et al.   PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN

The PalermoSwift-BAT hard X-ray catalogue

(2010) G. Cusumano et al.   ASTRONOMY & ASTROPHYSICS

Fe-K LINE PROBING OF MATERIAL AROUND THE ACTIVE GALACTIC NUCLEUS CENTRAL ENGINE WITHSUZAKU

(2010) Yasushi Fukazawa et al.   ASTROPHYSICAL JOURNAL

SDSS J1254+0846: A BINARY QUASAR CAUGHT IN THE ACT OF MERGING

(2010) Paul J. Green et al.   ASTROPHYSICAL JOURNAL

A RUNAWAY BLACK HOLE IN COSMOS: GRAVITATIONAL WAVE OR SLINGSHOT RECOIL?

(2010) F. Civano et al.   ASTROPHYSICAL JOURNAL

Resolving the mid-infrared cores of local Seyferts

(2009) P. Gandhi et al.   ASTRONOMY & ASTROPHYSICS

A candidate sub-parsec supermassive binary black hole system

(2009) Todd A. Boroson et al.   NATURE

The Parsec‐Scale Accretion Disk in NGC 3393

(2008) Paul T. Kondratko et al.   ASTROPHYSICAL JOURNAL

A massive binary black-hole system in OJ 287 and a test of general relativity

(2008) M. J. Valtonen et al.   NATURE