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Chapter and Conference Paper
Proper motion studies of H2O masers
The work of the CfA group over the past decade to measure the proper motions of H2O masers in our Galaxy is described. The distances to 7 masers have been measured and the distance to the Galactic Center, Ro, is ...
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Chapter and Conference Paper
VLBI observations of the water vapor megamaser in IC10
We present VLBI synthesis observations of the water vapor megamaser in the south eastern region of IC10. We compare our spectrum with earlier single dish spectra and conclude that the maser is highly variable.
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Chapter and Conference Paper
Preliminary results from a study of the proper motion of water vapor masers in cepheus A
Preliminary results from a study of the proper motions of water vapor masers associated with HII regions in Cepheus A are presented. The masers lie in two distinct clumps near the peaks in intensity of the HII...
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Chapter and Conference Paper
The nuclear jet in M87