VLBI imaging of extremely high redshift quasars at 5 GHz

ASC); I.I.K. Pauliny-Toth (MPIfR Bonn); I.M. Hook (ESO); JIVE); K.I. Kellermann (NRAO); Leiden Obs.); L.I. Gurvits (JIVE; R.G. McMahon (IoA Cambridge); R.T. Schilizzi (JIVE; S. Frey (FOMI SGO)

arxiv: astro-ph/9901396 · v1 · pith:KGUJKOJQnew · submitted 1999-01-28 · 🌌 astro-ph

VLBI imaging of extremely high redshift quasars at 5 GHz

Z. Paragi (FOMI SGO , JIVE) , S. Frey (FOMI SGO) , L.I. Gurvits (JIVE , ASC) , K.I. Kellermann (NRAO) , R.T. Schilizzi (JIVE , Leiden Obs.)

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R.G. McMahon (IoA Cambridge) I.M. Hook (ESO) I.I.K. Pauliny-Toth (MPIfR Bonn)

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keywords vlbihighobservedquasarsredshiftresolvedsourcesvery

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We present very long baseline interferometry (VLBI) images of ten very high redshift (z>3) quasars at 5 GHz. The sources 0004+139, 0830+101, 0906+041, 0938+119 and 1500+045 were observed in September 1992 using a global VLBI array, while 0046+063, 0243+181, 1338+381, 1428+423 and 1557+032 were observed in October 1996 with the European VLBI Network and Hartebeesthoek, South Africa. Most of the sources are resolved and show asymmetric structure. The sample includes 1428+423, the most distant radio loud quasar known to date (z=4.72). It is barely resolved with an angular resolution of about 2.0*1.4 mas.

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VLBI imaging of extremely high redshift quasars at 5 GHz

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