Water in Emission in the Iso Spectrum of the Early M Supergiant Star Μ Cephei


We report a detection of water in emission in the spectrum of the M2 supergiant star μ Cep (M2Ia) observed by the Short Wavelength Spectrometer (SWS) aboard Infrared Space Observatory (ISO) and now released as the ISO Archives. The emission first appears in the 6 μm region (ν2 fundamental bands), and then in the 40 μm region (pure rotation lines) despite… (More)