band spectrumA molecular spectrum consisting of numerous closely spaced, often unresolved, emission lines or absorption lines which occur across a limited range of frequencies. Each line represents an increment of energy due to a change in the rotational state of a specific molecule. Bands caused by titanium oxide, zirconium, and carbon compounds are characteristic of low temperature stars. Related category• SPECTRA AND SPECTROSCOPYAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |