... Spectral-line emission of atoms and molecules. Molecular maser emission. ... Radio emission of interstellar molecules. Molecular absorption lines. ... Mechanisms of formation of interstellar molecules. Radio stars. ...
... distingusihed with circumstellar maser emission of the OH, H 2 O, and SiO molecules ... through the radio continuum emission of the shock, amplified by masering molecules ... of maser emission of the same stars in 1.35-cm line of the H 2 O molecule ...
... under the action of pulsations, reach some time after the layers of the circumstellar envelope containing the H 2 O molecules ... the `superperiod' by building and disruption of a quasi-stationary circumstellar layer hosting the masering H2O molecules ...