We report the cumulative results of five surveys for H _ { 2 } O maser emission at 1.35 cm wavelength in 131 active galactic nuclei ( AGNs ) and star-forming galaxies , conducted at the Parkes Observatory between 1993 and 1998 .
We detected one new maser , in the edge-on galaxy IRAS F01063-8034 , which exhibits a single , \sim 0.1 Jy spectral feature at 4282 \pm 6  km s ^ { -1 }  ( heliocentric ) with an unusually large 54 \pm 16  km s ^ { -1 }  half-power full width .
The centroid velocity of the emission increased to 4319.6 \pm 0.6  km s ^ { -1 }  ( 38 \pm 2  km s ^ { -1 }  width ) over the 13 days between discovery and confirmation of the detection .
A similarly broad linewidth and large change in velocity has been noted for the maser in NGC 1052 , wherein jet activity excites the emission .
Neither optical spectroscopy , radio-infrared correlations , nor infrared colors provide compelling evidence of unusual activity in the nucleus of IRAS F01063-8034 .
Since the galaxy appears to be outwardly normal at optical and infrared wavelengths , detection of an H _ { 2 } O maser therein is unique .
The maser emission is evidence that the galaxy harbors an AGN that is probably obscured by the edge-on galactic disk .
The detection highlights the possibility that undetected AGNs could be hidden in other relatively nearby galaxies .
No other maser emission features have been identified at velocities between 3084 km s ^ { -1 }  and 6181 km s ^ { -1 } .