Proposal code

w005

Proposal title

Understanding the AGN Phenomenon. Radio continuum monitoring of the two variable BL-Lacs 0235+164 and 1749+096

The

Investigators and their

Affiliations

P.I. Venturi T. IRA-CNR, Bologna, Italy
Bondi M., Dallacasa D., Fanti R. IRA-CNR, Bologna, Italy
Mantovani F., Padrielli L. IRA-CNR, Bologna, Italy
Stanghellini C. IRA-CNR, Noto, Italy
Padovani P. Universita' di Roma, Roma, Italy
Tzioumis A. ATNF-CSIRO, Epping, Australia

Proposal Abstract

We propose a VSOP+ground array multiepoch study of the radio continuum flux density at 6 cm of the two BL-Lac radio sources 0235+164 and 1749+096. Both sources are characterised by emission at X- and gamma- ray energies and they are both undergoing a period of strong variability in the radio band. The present observations will allow us to study the bursts of radio emission on the VLBI scale, to locate the region of the variability and the detection of proper motion, to derive the intrinsic parameters of the flow, such as the Lorentz factor, and compare them with the expectations from the current models of variability at high energies and radio frequencies in AGN.

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.