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The Next-Generation Very Large Array: Supermassive Black Hole Pairs and Binaries
Sarah Burke-Spolaor, Laura Blecha, Tamara Bogdanovic +7
The Next-Generation Very Large Array (ngVLA) has the potential to be a workhorse for the discovery and study of paired supermassive black holes either at large separations (dual) o…
Measuring supermassive black hole peculiar motion using HO megamasers
Dominic W. Pesce, James A. Braatz, James J. Condon +1
HO megamasers residing in the accretion disks of active galactic nuclei (AGN) exhibit Keplerian rotation about the central supermassive black hole (SMBH). Such disk maser syste…
The Megamaser Cosmology Project. X. High Resolution Maps and Mass Constraint for SMBHs
W. Zhao, J. A. Braatz, J. J. Condon +8
We present high resolution (sub-mas) VLBI maps of nuclear H2O megamasers for seven galaxies. In UGC6093, the well-aligned systemic masers and high-velocity masers originate in an e…