105 citations · 393 across the 9 of their papers we have counts for
9 papers
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…
Parsec-scale jet properties of the gamma-ray quasar 3C 286
T. An, B. -Q. Lao, W. Zhao +4
The quasar 3C~286 is one of two compact steep spectrum sources detected by the {\it Fermi}/LAT. Here, we investigate the radio properties of the parsec(pc)-scale jet and its (possi…
The Megamaser Cosmology Project.IX. Black hole masses for three maser galaxies
F. Gao, J. A. Braatz, M. J. Reid +9
As part of the Megamaser Cosmology Project (MCP), we present VLBI maps of nuclear water masers toward five galaxies. The masers originate in sub-parsec circumnuclear disks. For thr…
Megamaser Disks Reveal a Broad Distribution of Black Hole Mass in Spiral Galaxies
Jenny E. Greene, Anil C. Seth, Minjin Kim +8
We use new precision measurements of black hole masses from water megamaser disks to investigate scaling relations between macroscopic galaxy properties and supermassive black hole…
Radio Properties of the -ray Emitting CSO Candidate 2234+282
T. An, Y. -Z. Cui, K. E. Gabanyi +3
Most of the gamma-ray emitting active galactic nuclei (AGN) are blazars, although there is still a small fraction of non-blazar AGN in the Fermi/LAT catalog. Among these misaligned…
The Megamaser Cosmology Project VIII. A Geometric Distance to NGC 5765b
F. Gao, J. A. Braatz, M. J. Reid +7
As part of the Megamaser Cosmology Project (MCP), here we present a new geometric distance measurement to the megamaser galaxy NGC 5765b. Through a series of VLBI observations, we…
Can residuals of the Solar system foreground explain low multipole anomalies of the CMB ?
M. Hansen, J. Kim, A. M. Frejsel +4
The low multipole anomalies of the Cosmic Microwave Background has received much attention during the last few years. It is still not ascertained whether these anomalies are indeed…
Radio structure of the blazar 1156+295 with sub-pc resolution
W. Zhao, X. -Y. Hong, T. An +4
1156+295 is a flat-spectrum quasar which is loud at radio and gamma-ray. Previous observations of the source revealed a radio morphology on pc to kpc scales consistent with a helic…
Difference of -disks between Seyfert 1 galaxies and Quasars
W. Bian, Y. Zhao
In a previous paper (Bian & Zhao 2002), it was suggested that contamination to the luminosity of galactic nucleus from the host galaxies play an important role in determining param…