364 citations · 2.4k across the 52 of their papers we have counts for
15 papers · 1 filter
The Megamaser Cosmology Project. XIII. Combined Hubble constant constraints
D. W. Pesce, J. A. Braatz, M. J. Reid +8
We present a measurement of the Hubble constant made using geometric distance measurements to megamaser-hosting galaxies. We have applied an improved approach for fitting maser dat…
Science with the ngVLA: HO Megamaser Cosmology
James Braatz, Dominic Pesce, James Condon +1
In combination with observations of the Cosmic Microwave Background, a measurement of the Hubble Constant provides a direct test of the standard CDM cosmological model and a pow…
Refining the M_BH-V_c scaling relation with HI rotation curves of water megamaser galaxies
Ai-Lei Sun, Jenny E. Greene, C. M. Violette Impellizzeri +3
Black hole - galaxy scaling relations provide information about the coevolution of supermassive black holes and their host galaxies. We compare the black hole mass - circular veloc…
Using Megamaser Disks to Probe Black Hole Accretion
Jenny E. Greene, Anil Seth, Mark den Brok +7
We examine the alignment between H_2O megamaser disks on sub-pc scales with circumnuclear disks and bars on <500 pc scales observed with HST/WFC3. The HST imaging reveals young sta…
The Megamaser Cosmology Project. V. An Angular Diameter Distance to NGC 6264 at 140 Mpc
Chengyu Kuo, James A. Braatz, Mark J. Reid +4
We present the direct measurement of the Hubble constant, yielding the direct measurement of the angular-diameter distance to NGC 6264 using the HO megamaser technique. Our m…
Mrk 1419 - a new distance determination
C. M. Violette Impellizzeri, James A. Braatz, Cheng-Yu Kuo +4
Water vapor megamasers from the center of active galaxies provide a powerful tool to trace accretion disks at sub-parsec resolution and, through an entirely geometrical method, mea…