Radio imaging of core-dominated high redshift quasars
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VLA imaging at kiloparsec-scale resolution of sixteen core-dominated radio-loud QSOs is presented. Many objects appear to display variable radio emission and their radio morphologies are significantly smaller than those of steep-spectrum quasars, consistent with these objects being observed at sight lines close to their (relativistic, $\gamma \approx$ 4-7) jet axes. The usefulness of the radio source orientation indicator R_V, being defined as ratio of radio core and rest frame optical V-band luminosity, is confirmed.
Originalsprog | Engelsk |
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Tidsskrift | Astronomy & Astrophysics |
ISSN | 0004-6361 |
Status | Udgivet - 25 nov. 1999 |
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