A discovery program for bright quasars - Preliminary results

Details A discovery program for bright quasars - Preliminary results A discovery program for bright quasars - Preliminary results

Oct 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pasp...88..665g&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 88, Oct.-Nov. 1976, p. 665-668.

Astronomy and Astrophysics

Astronomy

52

Brightness, Quasars, Spatial Distribution, Ultraviolet Spectrophotometers, Color Photography, Density Distribution, Electrophotometry, Hot Stars, Red Shift, Spectrum Analysis, Stellar Luminosity, Ubv Spectra, White Dwarf Stars

Scientific paper

A program has been undertaken to obtain a complete sample of bright quasars on the basis of ultraviolet color excess. Spectroscopic examination of candidates selected from two-color Schmidt telescope films has yielded four new quasars brighter than B = 16.5 mag, with the candidate list containing two more previously identified. Magnitudes, color indices, and redshifts are presented for the new discoveries, along with positions and finding charts. Although the sample is not yet complete, these first results suggest that bright quasars have a low surface density.

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