Proposal code

v110

Proposal title

High resolution imaging of rapid variations in the BL Lac object PKS1144-379

The

Investigators and their

Affiliations

P.I. G. D. Nicolson HartRAO
J. F. H. Quick HartRAO

Proposal Abstract

PKS1144-379 is a BL Lac object whose 5 GHz flux density has varied between 1 and 6 Jy over the past 15 years. Rapid variations with the scale of one to several weeks are a common feature, implying extremely high brightness temparatures. This source is unresolved on 9000 km baselines. We propose one observation with a large network to obtain a high dynamic range map with good resolution to resolve the core, followed by four observations with a smaller network to monitor changes in the structure and to establish where the rapid variations take place.

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.