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We present VLBI images and kinematics of water maser emission in three activegalaxies: NGC 5728, Mrk 1, and IRAS 08452-0011. IRAS 08452-0011 is atriple-peaked H2O megamaser, consistent with a Keplerian rotating disk,indicating a black hole mass of (3.3+/-0.2)x10^7 M_sun. NGC 5728 and Mrk 1display double-peaked spectra and VLBI imaging reveal complicated gaskinematics, which do not allow for a robust determination of black hole mass.The two systems are either gas disks perturbed by AGN winds or part ofoutflows. We find that disturbed morphology and kinematics are a ubiquitousfeature of all double-peaked maser systems, implying that these maser sourcesmay reside in environments where AGN winds are prominent at ~1 pc scale andhave significant impact on the masing gas. Such AGN tend to have black holemass M_BH < 8x10^6 M_sun and Eddington ratios lambda_Edd >~ 0.1, while thetriple-peaked megamasers show an opposite trend.

The Megamaser Cosmology Project. XII. VLBI Imaging of H$_{2}$O Maser Emission in Three Active Galaxies and the Effect of AGN Winds on Disk Dynamics