The Geometry of and Mass Accretion Rate through the Maser Accretion Disk in NGC 4258 (2005)
Herrnstein, J. R., Moran, J. M., Greenhill, L. J., Trotter, Adam S.
A maximum likelihood analysis of the NGC 4258 maser positions and velocities reveals a ~2 sigma deviation from Keplerian motion in the projected rotation curve of the high-velocity features,...
Water maser emission and the parsec-scale jet in NGC 3079 (1997)
Trotter, Adam S., Greenhill, Lincoln J., Moran, James M., Reid, Mark J., Irwin, Judith A., Lo, Kwok-Yung
We have conducted VLBI observations of water maser and radio continuum emission in the nucleus of NGC 3079. The 22 GHz maser emission arises in compact clumps, distributed along an axis that is...
An electron on a table-top: charged particles and the principle of equivalence (1993)
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