Proposal code

w423

Proposal title

Imaging the highest visibility sources

The

Investigators and their

Affiliations

P.I. Y. Murata ISAS, Japan
H. Hirabayashi, P.G. Edwards, K. Wajima, ISAS, Japan
E.B. Fomalont, NRAO, USA
S. Frey FOMI SGO, Hungary
A. Doi Univ. of Tokyo

Proposal Abstract

We propose to observe five of the most compact active galactic nuclei at both 1.6 and 5.0 GHz in order to measure their brightness temperatures at both frequencies and, combined with 15 GHz snap-shots during the HALCA tracking gaps (subject of a separate VLBA proposal), determine their spectral index distributions. We require the frequency agile VLBA in order to combine the 1.6 and 5.0 GHz VSOP observations by switching the telescopes between these frequencies and to use the ground array for the 15 GHz snap-shots.

The full Cover Sheets (compressed post-script, typically 50kbytes) can be retrieved. Note that some 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 AO4 proposals were submitted in October 2000, and information such as affiliations and contact details has changed for some proposers since that time.