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astro-ph2006★ 1 cited
Towards the Event Horizon - High Resolution VLBI Imaging of Nuclei of Active Galaxies
T. P. Krichbaum, D. A. Graham, A. Witzel +10
We report on new developments in VLBI, with emphasis on experiments performed at the highest frequencies possible to date (so called mm-VLBI). We have observed the nucleus of M 87…
astro-ph2001★ 90 cited
Structure of Sagittarius A* at 86 GHz using VLBI Closure Quantities
S. S. Doeleman, Z. -Q. Shen, A. E. E. Rogers +9
At radio wavelengths, images of the compact radio source Sagittarius A* (Sgr A*) in the Galactic Center are scatter broadened with a lambda^2 dependence due to an intervening ioniz…