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The Parkes quarter-Jansky flat-spectrum sample. 2. New optical spectra and redshift measurements

Hook, I M; Shaver, P A; Wall, Jasper V; Jackson, Carole; Kellermann, K I

Description

We present optical spectra and redshift measurements for 178 flat-spectrum objects from the Parkes quarter-Jansky flat-spectrum sample. These spectra were obtained in order to compile a complete sample of quasars for use in a study of quasar evolution. We present a composite optical spectrum made from the subset of 109 quasars that have flux densities in the range 0.25 Jy < S2.7 GHz < 0.5 Jy, and make a comparison with a composite for radio-quiet QSOs from the Large Bright Quasar Survey. Our...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
URI: http://hdl.handle.net/1885/87821
Source: Astronomy and Astrophysics

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