On the emission-line spectra of radio and optically selected quasars of high redshift

Details On the emission-line spectra of radio and optically selected quasars of high redshift On the emission-line spectra of radio and optically selected quasars of high redshift

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...214....1o&link_type=abstract

Astrophysical Journal, Part 1, vol. 214, May 15, 1977, p. 1-9.

Other

37

Line Spectra, Quasars, Spectral Emission, Astronomical Models, Radio Spectra, Red Shift, Spectral Line Width, Tables (Data)

Scientific paper

The question is raised of whether Smith's (1975) color-independent objective-prism technique produces a sample of unusually strong-lined or otherwise atypical quasars. SIT vidicon observations of eight previously known radio-selected quasars with redshifts greater than 1.9 are presented, and the objects' properties are compared with those of the quasars from the objective-prism survey. The two groups are found to have similar distributions of line strengths, strong-line equivalent widths, and strong-line intensity ratios. It is concluded that the objective-prism technique does not produce a sample of quasars with anomalously strong emission lines.

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