Proposal code

v057

Proposal title

VSOP Polarization Monitoring of 4 BL Lacertae Objects at 5 and 1.6 GHz

The

Investigators and their

Affiliations

P.I. D. Gabuzda Lebedev Physical Institute
A. Lobanov New Mexico Institute of Mining and Technology
K. Leppänen Helsinki University of Technology
A. Mioduszewski University of Michigan
D. Roberts Brandeis University
J. Wardle Brandeis University

Proposal Abstract

We propose two-epoch polarization observations for the four BL Lacertae objects OJ 287, 0954+658, 1803+784, and 2007+777 at 5 and 1.6 GHz. These sources have all been observed to have especially compact and highly polarized components that have been observed to vary dramatically on timescales ~1-2 years. Use of the VLBA in these observations would make it possible to obtain simultaneous matching resolution ground coverage, providing quasi-simultaneous coverage at three frequencies. The proposed observations would render much new information about the evolution of transverse shocks and magnetic field structures on subparsec scales, the relationship between the spectral indices and polarization of individual components, and the distribution of Faraday rotation near the cores of BL Lacertae objects.

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 AO1 proposals were submitted in November 1995, 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.