Radio imaging of core-dominated high redshift quasars
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Radio imaging of core-dominated high redshift quasars. / Barthel, Peter D.; Vestergaard, Marianne; Lonsdale, Colin J.
I: Astronomy & Astrophysics, 25.11.1999.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Radio imaging of core-dominated high redshift quasars
AU - Barthel, Peter D.
AU - Vestergaard, Marianne
AU - Lonsdale, Colin J.
PY - 1999/11/25
Y1 - 1999/11/25
N2 - 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.
AB - 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.
KW - astro-ph
M3 - Journal article
JO - Astronomy & Astrophysics
JF - Astronomy & Astrophysics
SN - 0004-6361
ER -
ID: 123369134