Proposal code

w012

Proposal title

Deep Interferometric VSOP-Arecibo Survey

The

Investigators and their

Affiliations

P.I. J.S. Ulvestad NRAO, Socorro, USA
H.Hirabayashi, H.Kobayashi, K.Fujisawa, P.Edwards ISAS, Sagamihara, Japan
E.B. Fomalont NRAO, Charlottesville, USA
L.I. Gurvits JIVE, Dwingeloo, Netherlands
T. Ghosh, C. Salter, D. Altschuler NAIC, Arecibo Observatory, Puerto Rico
R. Preston, D. Murphy JPL, Pasadena, USA
A. Patnaik MPIfR, Bonn, Germany
P. Dewdney, R. Taylor DRAO/U. Calgary, Canada
H. Kimura NAO, Mitaka, Japan

Proposal Abstract

We propose sensitive 5-GHz HALCA-Arecibo observations of at least 30 objects from a sample of 60 flat-spectrum sources selected from the FIRST survey. Such observations would enter a previously unreachable area in the phase space of angular resolution vs. sensitivity, that can be exploited only by the most sensitive VSOP baseline, between HALCA and Arecibo. The program objects are a compact-flux-density-limited subset of a larger sample of 161 FIRST sources imaged in VLBA snapshot observations. Statistical studies of the HALCA-Arecibo data will be compared to results of the VSOP Survey Program to look for differences in the properties of the compact components between high- and moderate-luminosity sources. In addition, the properties of the weaker sources in this program will be used for planning purposes for future, more sensitive space VLBI missions such as VSOP-2 and ARISE.

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.