Proposal code

w075

Proposal title

The high brightness temperature source PKS 1921--293

The

Investigators and their

Affiliations

P.I. P. Edwards ISAS, Japan
J.E.J. Lovell, H. Hirabayashi ISAS, Japan
G.A. Moellenbrock, K. Fujisawa ISAS, Japan
D. Jauncey, J. Reynolds, A. Tzioumis ATNF, Australia
M. Tornikoski, E. Valtaoja Metsahovi, Finland
R. Preston, D. Murphy, D. Meier, S. Tingay JPL, USA
Z.Q. Shen Shanghai Observatory, China
P. McCulloch, M. Costa University of Tasmania, Australia
G. Nicolson Hartebeesthoek RAO, South Africa

Proposal Abstract

This proposal seeks two epoch 5 GHz polarization observations of PKS 1921-293, one of the strongest, most compact radio sources known. Ground-based VLBI observations indicate an unresolved core, with a secondary component ~1 mas away moving on a curved trajectory. The two epoch polarization observations proposed here, which will be supplemented by our on-going multi-frequency monitoring, will enable us to monitor the core brightness temperature and evolution of the jet component and to probe the magnetic field structure close to the core. These observations will help shed light on why PKS 1921-293 is, surprisingly, not an EGRET source.

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 AO2 proposals were submitted in May 1998, 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.