Proposal code

w074

Proposal title

Multi-band multi-epoch measurements of GHz-peaked-spectrum radio sources.

The

Investigators and their

Affiliations

P.I. OKUDAIRA Atuya Kagosima Keizai University, Japan
T. Omodaka Faculty of Science, Kagoshima Univ., Japan
H. Kobayashi, H. Hirabayashi ISAS, Japan
Kenta Fujisawa CBO, Japan

Proposal Abstract

We propose the simultaneous 1.6 GHz and 5GHz observations of GHz-peaked radio quasars \(0500+019\) and \(0738+313\). Their milliarcsecond structures don't look like simple core-jet. \(0500+019\) shows the S-shaped milliarcsecond structure. \(0738+313\) shows the twin-jets-like structure. The possible interpretation of the structures is twin jets (or hot spots). There are three other interpretations: 1) is one bending core-jet, 2) is a pair of core-jet source, 3) is the lensing effects by the foreground galaxy. In order to determine the structure of the object, we will measure spectral indices of the components. It may reveal the core component. Moreover we can test the (both structure and intensity) variability by multi-epoch observations. Then we will be able to know if the milliarcsecond components are jets or not.

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.