Proposal code

w419

Proposal title

Follow-up observations of the innermost jet region of 3C 345

The

Investigators and their

Affiliations

P.I. J. Klare MPIfR, Bonn, Germany
J.A. Zensus MPIfR, Bonn, Germany
E. Ros MPIfR, Bonn, Germany
A.P. Lobanov MPIfR, Bonn, Germany

Proposal Abstract

We propose to continue our extensive VSOP imaging, complementary to our ongoing ground-based monitoring campaigns at cm- and mm-wavelengths, to study the innermost part of the jet in 3C 345 with VSOP at 5 GHz and 1.6 GHz for three epochs separated by 4 months. This should give us an adequate time-sampling to trace the bent trajectories, the flux and size evolution, the velocities and accelerations of the innermost superluminal jet-components with high precision. 1.6 GHz data should allow to investigate an eventual edge-brightning at the outer part of the jet. The evolution of the jet-features C7, C8, C9 and C10 is presently at a crucial stage. The polarisation imaging will allow us to measure the magnetic field strength and its spatial distribution along the jet. In sum, a detailed study of the innermost jet region should help to improve our knowledge of 3C 345 and provide important constraints for different jet models.

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.