Proposal code

w015

Proposal title

The Low Frequency Structure of the NGC 1052 Jet

The

Investigators and their

Affiliations

P.I. M. J. Claussen NRAO, USA
J. Ulvestad, P. Diamond, J. Braatz NRAO, USA
A. Wilson University of Maryland, USA
C. Henkel MPIfR, Germany

Proposal Abstract

We propose two-epoch 1.6 and 5 GHz observations of the elliptical galaxy NGC 1052, which contains a two-sided radio jet tens of milliarcseconds (several parsecs) in length. Two regions of 22-GHz water maser emission are seen in its western jet, elongated along the jet rather than along the axis of the putative accretion disk. An apparent gap at the nucleus at frequencies <= 22 GHz is probably due to strong free-free absorption. Free-free absorption at frequencies of a few gigahertz is also likely to be present at the position of the masers, but only VSOP has the resolution to map out the locations of the absorbing gas at 1.6 and 5 GHz. The VSOP data will be used with our continuing 22-GHz VLBA observations of NGC 1052 to study the absorption, constrain the models of the maser excitation, and look for relative motions of the VLBI components.

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.