How do Halley's ices mase?



As Halley's comet returns to the interior of the solar system in 1986, efforts will be made to measure its properties as a maser (Microwave amplification by the Stimulated Emission of Radiation) , i.e., is it characterized by the natural microwave emission process from which the concept of the laser was developed? The very core of the comet is composed of a mixture of planetary ices, made mostly of water but also of frozen methane and ammonia. Ions of these ices will emit radiowaves of 18-cm wavelength. Synchronized emission can form a maser.