We have detected OH maser emission from four stars classified at optical wavelengths as F- or G-type supergiants. ^The spectral characteristics of the OH masers are described. ^For the source HD 101584, images of the OH 1667 MHz maser emission obtained with the Australia Telescope show that the masers are located in a bipolar outflow. ^The stars are likely to be proto-planetary nebulae.
CITATION STYLE
Chapman, J. M., te Lintel Hekkert, P., & Killeen, N. E. . B. (1993). OH maser emission from F- and G-type supergiant stars (pp. 349–352). https://doi.org/10.1007/3-540-56343-1_276
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