OH Masers in Envelopes of Late Type Stars [chapter]

A. M. Le Squeren, P. Sivagnanam, F. Tran Minh, M. Dennefeld, F. Foy
1987 Circumstellar Matter  
Two studies of OH maser emission in envelopes of late type stars -miras (3) and OH/IR objects-have been performed with the Nancay radio-telescope. Mainly, the OH miras are found with thicker dust envelopes than the non OH ones. A sample of unidentified IRAS point sources selected on their colors has been observed. We have detected 46 new OH sources. The OH detection rate is a function of the galactic longitude and of the IRAS spectral classification. 243 /. Appenzeller and C. Jordan (eds.),
more » ... Jordan (eds.), Circumstellar Matter, 243-244. © 1987 by the IAU. available at https://www.cambridge.org/core/terms. https://doi.
doi:10.1007/978-94-009-3887-8_66 fatcat:xb5cujazf5glplfg3edhzfbfka