Proposal code

w405

Proposal title

The Nuclear Jet in M87

The

Investigators and their

Affiliations

P.I. Alice L. Argon Harvard-Smithsonian CfA; USA
Mark J. Reid Harvard-Smithsonian CfA; USA
Lincoln J. Greenhill Harvard-Smithsonian CfA; USA
James M. Moran Harvard-Smithsonian CfA; USA

Proposal Abstract

M87 is the archetypal extragalactic jet source. Global VLBI observations at 1.6 GHz reveal a complex, limb-brightened jet with sub-luminal motions. High-resolution HALCA observations (AO2; March 2000) reveal structures across the jet that have never before been seen in this source (Fig. 1a). In addition, our seven epochs of AO1 and AO2 HALCA observations suggest that the appearance of the jet changes little, if at all, over time. We propose three AO4 epochs. Two of these, if combined, would produce a high-fidelity image with high-resolution both along and across the jet. It would then be compared to our high-fidelity March 2000 image to check for changes. If none are found, the data from AO1, AO2, and the proposed AO4 would be combined to fill in the holes in the ( u,v)-plane and produce a truly spectacular final image. We also propose continued 5 GHz observations to combine with archival HALCA data.

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.