submillimeter wave astronomy The study of the universe in the last waveband of the electromagnetic spectrum to be explored from Earth: the submillimeter window, which extends between wavelengths of about 0.3 to 1 millimeter. This bandwidth is ideally suited for studies of the structure and motions of the matter that forms stars; of the spiral structure of galaxies, as outlined by their giant molecular clouds; and of quasars and active galactic nuclei. The submillimeter window lies between the longest infrared wavelengths and the short radio waves in the millimeter band. Related category OBSERVATIONAL ASTRONOMY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |