Astronomical Maser Radiation
Before embarking on a discussion of maser radiation in astronomy we have to familiarize ourselves with the energy level structure of the maser molecules. This section presents the essential features of the relevant molecular spectra. A comprehensive treatment can be found in the book Microwave Spectroscopy by Townes and Schawlow (1956).
KeywordsBrightness Temperature Nuclear Spin Maser Line Energy Level Diagram Rotation Level
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