Proposal code

w425

Proposal title

High Fidelity VSOP Imaging of GPS Sources

The

Investigators and their

Affiliations

P.I. M. L. Lister JPL, USA
D. W. Murphy JPL, USA
R. A. Preston JPL, USA

Proposal Abstract

We propose to conduct a high fidelity VSOP imaging survey by combining observations from at least two well-separated epochs. During this interval HALCA's orbit will have precessed sufficiently such that the combined datasets will have unprecedented \uv coverage. Our images will therefore not suffer from the large on-source errors found in most space-VLBI images that have large holes in the \uv plane. Our sample consists of four Gigahertz-Peaked Spectrum (GPS) sources in the Pearson-Readhead sample whose structure and flux densities are exceptionally stable, making them ideal targets for this technique. These high fidelity images will lead to a better understanding of jet bending on small scales in these powerful AGNs, and will likely be an important legacy of the VSOP project.

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.