Discovery and spectrophotometry of the quasars in the -40 deg zone of the CTIO Curtis Schmidt survey

Details Discovery and spectrophotometry of the quasars in the -40 deg zone of the CTIO Curtis Schmidt survey Discovery and spectrophotometry of the quasars in the -40 deg zone of the CTIO Curtis Schmidt survey

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apjs...42..333o&link_type=abstract

Astrophysical Journal Supplement Series, vol. 42, Feb. 1980, p. 333-349.

Astronomy and Astrophysics

Astrophysics

153

Astronomical Catalogs, Quasars, Stellar Spectrophotometry, Absorption Spectra, Emission Spectra, Line Spectra, Luminosity, Red Shift, Schmidt Cameras, Space Density, Tables (Data), Vidicons

Scientific paper

The paper considers the discovery and spectrophotometry of the quasars in the -40 deg zone of a Curtis Schmidt survey. 128 quasars were discovered, and spectroscopic observations with the SIT vidicon produced a spectral atlas which showed 90% of the candidates to be quasars and 80% to have z greater than 1.8. The quasars with unusual emission-line strengths, widths, or ratios are indicated, and 14 quasars with very strong absorption lines are mentioned along with quasars that may be large-amplitude variables. It is concluded that the new data confirm earlier results that the space density of the most luminous quasars is constant over the interval of z in the 1.9-3.25 range and is consistent with Schmidt's exponential density law.

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