Spectrophotometry of two complete samples of flat radio spectrum quasars

Details Spectrophotometry of two complete samples of flat radio spectrum quasars Spectrophotometry of two complete samples of flat radio spectrum quasars

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...276..403w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 276, Jan. 15, 1984, p. 403-412. Research supported by the Science and Engin

Astronomy and Astrophysics

Astrophysics

84

Quasars, Radio Spectra, Seyfert Galaxies, Spectrophotometry, Carbon, Cosmology, Emission Spectra, Error Analysis, Iue, Red Shift, Spectral Line Width

Scientific paper

Spectrophotometry of two complete samples of flat-spectrum radio quasars show that for these objects there is a strong correlation between the equivalent width of the C IV 1550 A emission line and the luminosity of the underlying continuum. Assuming Friedmann cosmologies, the scatter in this correlation is a minimum for Q(O) approximately unity. Alternatively, luminosity evolution can be invoked to give compact distributions for Q(O) approximately zero models. A sample of Seyfert galaxies observed with IUE shows that despite some dispersion the average equivalent width of C IV 1550 A in Seyfert galaxies is independent of the underlying continuum luminosity. New redshifts are given for four quasars.

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