Broad forbidden Ne III line emission and intermediate-density gas around QSO nuclei - Zheng, Wei; Burbridge, E. Margaret; Smith, Harding E. (Publications of the Astronomical Society of the Pacific, 1990)
Keywords: Astrophysics; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMIC GASES; COSMIC RADIO SOURCES; DENSITY; ELEMENTS; EMISSION SPECTRA; ENERGY-LEVEL TRANSITIONS; FLUIDS; FLUX DENSITY; FORBIDDEN TRANSITIONS; GALAXY NUCLEI; GASES; INTERSTELLAR SPACE; IONIZED GASES; LINE WIDTHS; NEON; NONMETALS; PHYSICAL PROPERTIES; QUASARS; RADIATION PRESSURE; RARE GASES; SPACE; SPECTRA 640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources; VELOCITY