A RENEWED SEARCH FOR WATER MASER EMISSION FROM MIRA VARIABLES

There is an approximate to 60% detection rate for 1612 MHz masers in a ssociation with red, color-selected IRAS sources, though few are detec ted from the bluer circumstellar shells of Mira variables. On the othe r hand and complementarily, past, pre-IRAS 22 GHz surveys detected man y water masers in association with Mira variables. This paper reports on a 22 GHz survey of blue, color-selected Miras at Haystack, wherein 18 new detections are found from 238 searched objects. (C) 1997 Americ an Astronomical Society.