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Analysis of the Observations
Physical Conditions in the EmissionLine Regions
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absorption lines Ap.J approximately Baldwin Balmer continuum Balmer lines blend blueshifted Boksenberg and Netzer broad broad-line Burbidge cloud CNE V3 collision strength collisional excitation models component Deblend electron density emission lines emission region emission-line equivalent widths Fe II emission Fe II lines Fe II QSOs Fe II Seyfert Fe VII Figure flux forbidden lines G band galaxies and QSOs Grandi hydrogen lines indicated ionization Koski levels luminosity Markarian measured Mrk 9 multiplet 42 objects optical depths optical Fe optical multiplets optical spectrum Optically-Thick Collisional Excitation oscillator strengths Osterbrock 1977a permitted lines Phillips photoionization photons plotted power-law continuum QSOs observed radio galaxies ratio recombination redshift relative intensities relative line intensities resonance fluorescence models resonance lines resonance-line scans Seyfert 1 galaxies SOLAR spectra spectral index spectrum strong Fe temperature thesis transition probabilities ultraviolet upper limit values Versus wavelength weak Weedman