Proposal code

v047

Proposal title

The Structure of Extremely High Redshift Quasars at 1.6 and 5 GHz

The

Investigators and their

Affiliations

P.I. L.I. Gurvits JIVE, The Netherlands
S. Frey FÖMI SGO, Hungary
R.T. Schilizzi JIVE, The Netherlands
K.I. Kellermann, A.P. Lobanov NRAO, USA
N. Kawaguchi NAO, Mitaka, Japan
I.I.K. Pauliny-Toth MPIfR, Germany

Proposal Abstract

We propose to observe 13 extremely high redshift (z>3) quasars at 1.6 GHz (total flux densities higher than 600 mJy) and 14 quasars at 5 GHz (total flux densities higher than 550 mJy). All of the proposed sources either have been or will be soon observed at 5 GHz with ground-based VLBI. These studies indicate that mas structures are dominated by bright features unresolved with ground-based VLBI. It makes these sources ideal targets for Space VLBI observations.

This proposal addresses two major scientific goals: (i) search for evolutionary effects in radio loud quasars as a class of objects and (ii) creation of an observational data base for cosmological application of parsec-scale radio structures in QSOs.

We suggest this proposal to be considered as a VSOP Key Science Program.

The full Cover Sheets (compressed post-script, typically 50kbytes) can be retrieved. Note that many proposals were reduced in extent by the Scientific Review Committee (e.g. by reducing the number of experiments), however the Cover Sheets contain the full proposal as submitted. Also note that AO1 proposals were submitted in November 1995, and information such as affiliations and contact details has changed for some proposers since that time. The Cover Sheets (and the details on this page, which were derived from the Cover Sheets) may therefore have changed.