4 papers
The Megamaser Cosmology Project. XII. VLBI Imaging of HO Maser Emission in Three Active Galaxies and the Effect of AGN Winds on Disk Dynamics
C. Y. Kuo, J. A. Braatz, C. M. V. Impellizzeri +7
We present VLBI images and kinematics of water maser emission in three active galaxies: NGC 5728, Mrk 1, and IRAS 08452-0011. IRAS 08452-0011 is a triple-peaked H2O megamaser, cons…
The MBHBM* Project -- I: Measurement of the Central Black Hole Mass in Dwarf Galaxy NGC 3504 Using Molecular Gas Kinematics
Dieu D. Nguyen, Mark den Brok, Anil C. Seth +19
We present the first measurement of the mass of a supermassive black hole (SMBH) in the nearby double-barred spiral galaxy NGC 3504 as part of the Measuring Black Holes Below the M…
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…
Extragalactic maser surveys
C. Henkel, J. -E. Greene, F. Kamali
Since the IAU (maser-)Symposium 287 in Stellenbosch/South Africa (Jan. 2012), great progress has been achieved in studying extragalactic maser sources. Sensitivity has reached a le…