84 citations · 145 across the 4 of their papers we have counts for
4 papers
Compact Bright Radio-loud AGNs -- III. A Large VLBA Survey at 43 GHz
X. -P. Cheng, T. An, S. Frey +12
We present the observational results from the 43-GHz Very Long Baseline Array (VLBA) observations of 124 compact radio-loud active galactic nuclei (AGNs) that were conducted betwee…
The Megamaser Cosmology Project. XI. A geometric distance to CGCG 074-064
D. W. Pesce, J. A. Braatz, M. J. Reid +6
As part of the survey component of the Megamaser Cosmology Project, we have discovered a disk megamaser system in the galaxy CGCG 074-064. Using the GBT and the VLA, we have obtain…
The mass estimate in narrow-line Seyfert 1 galaxies
W. Bian, Y. Zhao
It is possible that narrow-line Seyfert 1 galaxies (NLS1s) are in the early stage of active galactic nuclei (AGNs) evolution. It is important to estimate the mass of supermassive b…
On X-ray variability in narrow line and broad line AGNs
W. Bian, Y. Zhao
We assembled a sample of broad line and narrow lines AGNs observed by ASCA, whose excess variances have been determined. The central black hole masses in this sample can be obtaine…