Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...237..319w&link_type=abstract
Astrophysical Journal, Part 1, vol. 237, Apr. 1, 1980, p. 319-325.
Astronomy and Astrophysics
Astronomy
67
Iron, Line Spectra, Quasars, Stellar Spectra, Stellar Spectrophotometry, Ultraviolet Astronomy, Absorption Spectra, Emission Spectra, Magnesium, Photoionization, Ultraviolet Spectra
Scientific paper
Spectrophotometry of 11 intermediate redshift QSOs clearly shows the presence of a very broad emission feature from 2300 to 2600 A and other broad features at 2748, 2950, and 3200 A, all of which are interpreted as blended Fe II resonance lines. The strengths of these ultraviolet lines relative to those of the Fe II optical multiplets and other emission lines agree with Netzer's predictions from photoionization models of the broad-line regions of QSOs in which the Fe II is predominantly due to collisional excitation. Some new Mg II absorption line systems are noted.
Netzer Hagai
Uomoto Alan K.
Wills Beverley J.
Wills Danielle
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