A Survey for H${}_2$O Megamasers in Active Galactic Nuclei -- II. A Comparison of Detected and Undetected Galaxies

J. A. Braatz, A. S. Wilson, C. Henkel

A survey for H2O megamaser emission from 354 active galaxies has resulted in the detection of 10 new sources, making 16 known altogether. The galaxies surveyed include a distance-l…