Proposal code

v030

Proposal title

The Pearson-Readhead Survey from Space

The

Investigators and their

Affiliations

P.I. R.A. Preston JPL, Caltech (USA)
T.J. Pearson, A.C.S. Readhead Caltech (USA)
D.W. Murphy, D.L. Meier, D.L. Jones JPL, Caltech (USA)
H. Hirabayashi, H. Kobayashi ISAS (Japan)
M. Inoue NRO (Japan)

Proposal Abstract

We propose to use VSOP and the VLBA to perform an imaging survey of the intensely-studied Pearson-Readhead sample. Based on image simulations, we have shown that data from only a single orbit of VSOP with co-observation by the VLBA is sufficient to achieve images of almost equivalent quality to four-orbit images. Due to the limited observing time available with VSOP, such single-orbit images provide the only practical means of performing an imaging survey of a statistically significant complete sample of sources. The goal of the survey is to obtain two-epoch 5 GHz images of 31 sources from this well-studied sample, and single-epoch 22 GHz images of 12 sources. This would allow us to deduce the general properties of the sub-parsec nuclear regions of these objects ( e.g., brightness temperature, variability, position angle, proper motion, and general morphology) and compare them to the properties of regions farther downstream.

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.