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Spectrophotometry of Michigan-Tololo quasarsEmission-line quasar characteristics are confirmed for 80% of the objects observed, including at least four new quasars with spectral features indicative of supernova-like outflow. Approximately 73% of the redshifts predicted from the discovery plates are found accurate with a mean error in z of 0.03, and a large range of z (from about 0.1 to 3.16) is represented in the sample. The observed redshift distribution for quasars is marginally consistent with a constant co-moving quasar density above z approximately 2.0. The shape of the redshift distribution may be used as an isotropy probe with a cosmic time resolution of a few times one-hundred million years in the early universe; therefore, continued surveys of this sort are important even if accurate magnitudes are not determined.
Document ID
19790021950
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lewis, D. W. (Michigan Univ. Ann Arbor, MI, United States)
Macalpine, G. M. (Michigan Univ. Ann Arbor, MI, United States)
Weedman, D. W. (Vanderbilt Univ.)
Date Acquired
September 3, 2013
Publication Date
April 9, 1979
Subject Category
Astronomy
Report/Patent Number
NASA-CR-158873
Accession Number
79N30121
Funding Number(s)
CONTRACT_GRANT: NGR-23-005-464
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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