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Quasar energy distributions. I - Soft X-ray spectra of quasars
(IOP Publishing, 1987)
As the initial stage of a study of quasar energy distributions (QEDs), Einstein IPC spectra of 24 quasars are presented. These are combined with previously reported IPC spectra to form a sample of 33 quasars with well-determined ...
Is optical Fe II emission related to the soft X-ray properties of quasars?
(IOP Publishing, 1987)
Radio-quiet quasars generally show broad, blended multiplets of Fe II emission in their optical and UV spectra. Radio-loud quasars also show UV Fe II emission, but their optical Fe II emission is generally weaker. No ...