%0 Journal Article
%T Accretion and Outflow Traced by Water Masers in the Circinus AGN
%A L. J. Greenhill
%A J. M. Moran
%A R. S. Booth
%A S. P. Ellingsen
%A P. M. McCulloch
%A D. L. Jauncey
%A R. P. Norris
%A J. E. Reynolds
%A A. K. Tzioumis
%A J. R. Herrnstein
%J Physics
%D 2000
%I arXiv
%X The first VLBI images of water maser emission in the Circinus Galaxy AGN show both a warped, edge-on accretion disk and an outflow 0.1 to 1 pc from the central engine. The inferred central mass is 1.3 million suns, while the disk mass may be on the order of 0.1 million suns, based on a nearly Keplerian rotation curve. The bipolar, wide-angle outflow appears to contain ``bullets'' ejected from within <0.1 pc of the central mass. The positions of filaments and bullets observed in the AGN ionization cone on kpc-scales suggest that the disk channels the flow to a radius of about 0.4 pc, at which the flow appears to disrupt the disk.
%U http://arxiv.org/abs/astro-ph/0012032v1