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Title:
Discovery and spectrophotometry of the quasars in the -40 deg zone of the CTIO Curtis Schmidt survey
Authors:
Osmer, P. S.; Smith, M. G.
Affiliation:
AA(Observatorio Interamericano de Cerro Tololo, La Serena, Chile), AB(Observatorio Interamericano de Cerro Tololo, La Serena, Chile; Anglo-Australian Observatory, Epping, New South Wales, Australia)
Publication:
Astrophysical Journal Supplement Series, vol. 42, Feb. 1980, p. 333-349. (ApJS Homepage)
Publication Date:
02/1980
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Astronomical Catalogs, Quasars, Stellar Spectrophotometry, Absorption Spectra, Emission Spectra, Line Spectra, Luminosity, Red Shift, Schmidt Cameras, Space Density, Tables (Data), Vidicons
DOI:
10.1086/190653
Bibliographic Code:
1980ApJS...42..333O

Abstract

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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