Automated measurements of diffuse interstellar bands in early-type star spectra

Abstract

Complex molecules cycling from circumstellar envelopes through various phases of interstellar matter in the Milky Way are considered. Approximately 65 of the interstellar species detected so far are considered to be organic molecules. By interpreting molecular signatures, it is possible to determine the chemical composition, temperature, mass, internal motions, and evolutionary fate of a dark interstellar cloud.