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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…
The Megamaser Cosmology Project: IV. A Direct Measurement of the Hubble Constant from UGC 3789
M. J. Reid, J. A. Braatz, J. J. Condon +4
In Papers I and II from the Megamaser Cosmology Project (MCP), we reported initial observations of water masers in an accretion disk of a supermassive black hole at the center of t…
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…
[CII] line emission in massive star-forming galaxies at z=4.7
J. Wagg, T. Wiklind, C. L. Carilli +20
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of the [CII] 157.7micron fine structure line and thermal dust continuum emission from a pair of gas-rich…
Water vapour at high redshift: Arecibo monitoring of the megamaser in MG J0414+0534
P. Castangia, C. M. V. Impellizzeri, J. P. McKean +6
The study of water masers at cosmological distances would allow us to investigate the parsec-scale environment around powerful radio sources, to probe the physical conditions of th…
New Global VLBI observations of the gravitational lensing system MG J0414+0534
F. Volino, O. Wucknitz, R. W. Porcas +9
The gravitational lens system MG J0414+0534 is formed by an elliptical galaxy at redshift ~0.96 and a quasar at z~2.64. The system geometry is typical of lensing by an elliptical g…