1.1k citations · 4.4k across the 52 of their papers we have counts for
Showing 2004 · astro-phShow all
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astro-ph2004
The Proper Motion of Sgr A*: II. The Mass of Sgr A*
M. J. Reid, A. Brunthaler
We report measurements with the VLBA of the position of Sgr A* with respect to two extragalactic radio sources over a period of eight years. The apparent proper motion of \sgrab re…
astro-ph2004
The IC133 Water Vapor Maser in the Galaxy M33: A Geometric Distance
A. L. Argon, L. J. Greenhill, J. M. Moran +3
We report on the results of a 14 year long VLBI study of proper motions in the IC133 H2O maser source in the galaxy M33. The method of Ordered Motion Parallax was used to model the…