Ultraviolet spectra of quasars in the redshift interval 0.3 to 2.0

Details Ultraviolet spectra of quasars in the redshift interval 0.3 to 2.0 Ultraviolet spectra of quasars in the redshift interval 0.3 to 2.0

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.222...71g&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 222, Sept. 1, 1986, p. 71-110.

Astronomy and Astrophysics

Astronomy

29

Quasars, Red Shift, Spaceborne Astronomy, Ultraviolet Spectra, Balmer Series, Continuous Radiation, Ionizing Radiation, Iue, Spectral Line Width, Visible Spectrum, X Ray Spectra

Scientific paper

UV spectroscopic observations of nine QSOs with z = 0.3-2.0, obtained with the IUE SWP and LWR(P) instruments during 1978-1983, are reported. The continuum emission is attributed to the combination of a 20,000-30,000-K blackbody (the source of most of the UV emission), Balmer emission, and a power-law component (extending to the X-ray emission). The mean parameters of the broad-line region are shown to be similar to those of high-z QSOs. It is inferred that the broad-line region is small and as close to the source of ionizing radiation as 0.2 pc.

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