Proposal code

w019

Proposal title

Sub-mas Structure and Motion in Lobe-dominated Quasars

The

Investigators and their

Affiliations

P.I. David H. Hough Trinity University, San Antonio, TX, USA
David W. Murphy JPL, Pasadena, CA, USA
Anthony C. S. Readhead Caltech, Pasadena, CA, USA
Rene C. Vermeulen NFRA, Dwingeloo, The Netherlands
David A. Wood, Jr. University of Arizona, Tucson, AZ, USA

Proposal Abstract

We propose VSOP plus VLBA observations at 5 GHz to make Phase 2, second-epoch maps of the relatively strong nuclei in the lobe-dominated quasars 3C207 and 3C245. As for the Phase 1, first-epoch observations (currently scheduled for 1998 November), the superior beam size and shape as compared to ground-based VLBI will enable us to probe details of the exceedingly compact (<0.5 mas) structures known to exist in these objects. Depending on the exact (u,v) coverage obtained during Phase 1, these Phase 2 maps may permit superior tests of jet alignment and bending. In addition, of course, we will be able to search for superluminal motion -- which may be unusally large in the case of 3C207 -- with second-epoch maps. These investigations of compact morphology, jet curvature, and parsec-scale jet speeds will be of great value in testing AGN unification scenarios.

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.