Proposal code

w323

Proposal title

Distinguishing between Different Radio Core Structures

The

Investigators and their

Affiliations

P.I. Dayton L. Jones Jet Propulsion Laboratory, Caltech, USA
Robert A. Preston, David L. Meier, Jet Propulsion Laboratory, Caltech, USA
David W. Murphy, Matthew Lister, \ and Jet Propulsion Laboratory, Caltech, USA
B. Glenn Piner Jet Propulsion Laboratory, Caltech, USA

Proposal Abstract

VSOP observations have the potential to probe the structure of the very compact cores seen in AGN, but experiments to date lack the necessary high SNR data on the longest baselines. We propose to use VSOP and the most sensitive ground telescopes, especially Arecibo, to observe the compact sources AO 0235+164 and 0735+178. This high SNR, long-baseline data will allow us to distinguish between different radio core structures and measure brightness temperatures to much better than the currently-obtained factor of two precision. A better understanding of these possibly high Lorentz-factor cores will have implications for jet production models in many types of objects. Our results also will help determine the best methods for estimating core brightness temperatures using VSOP or ground VLBI data, and is especially critical to proper interpretation of the large VSOP Survey 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 AO3 proposals were submitted in October 1999, 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.