19 citations · 71 across the 5 of their papers we have counts for
3 papers · 1 filter
The parallax and 3D kinematics of water masers in the massive star-forming region G034.43+0.24
Xiaofeng Mai, Bo Zhang, M. J. Reid +12
We report a trigonometric parallax measurement of 22 GHz water masers in the massive star-forming region G034.43+0.24 as part of the Bar and Spiral Structure Legacy (BeSSeL) Survey…
A Milliarcsecond-accurate Position for Sagittarius A*
Shuangjing Xu, Bo Zhang, Mark J. Reid +3
The absolute position of Sgr A*, the compact radio source at the center of the Milky Way, had been uncertain by several tens of milliarcseconds. Here we report improved astrometric…
The impacts of source structure on geodetic parameters demonstrated by the radio source 3C371
Ming H. Xu, Robert Heinkelmann, James M. Anderson +4
Closure quantities measured by very long baseline interferometry (VLBI) observations are independent of instrumental and propagation instabilities and antenna gain factors, but are…