Radio imaging of core-dominated high redshift quasars

Peter D. Barthel; Marianne Vestergaard; Colin J. Lonsdale

Radio imaging of core-dominated high redshift quasars

Astrophysics 2007-05-23 v1

Authors: Peter D. Barthel , Marianne Vestergaard , Colin J. Lonsdale

Abstract

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.

Keywords

quasar radio galaxy jet luminosity orientation

Cite

@article{arxiv.astro-ph/9911474,
  title  = {Radio imaging of core-dominated high redshift quasars},
  author = {Peter D. Barthel and Marianne Vestergaard and Colin J. Lonsdale},
  journal= {arXiv preprint arXiv:astro-ph/9911474},
  year   = {2007}
}

Comments

11 pages, 11 postscript figures, uses aa.cls 4.03 for LaTeX2e To appear in Astronomy and Astrophysics

Radio imaging of core-dominated high redshift quasars

Abstract

Keywords

Cite

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