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VLBI Monitoring of the bright gamma-ray blazar PKS 0537-441

conference contribution
posted on 2023-05-23, 17:18 authored by Hungwe, F, Ojha, R, Kadler, M, Booth, R, Blanchard, JM, James LovellJames Lovell, Muller, C, Bock, M, TANAMI Team, The
One of the defining characteristics of BL Lacertae objects is their strong variability across the electromagnetic spectrum. PKS 0537−441 is one such object and is one of the most luminous blazars from radio to -ray wavelengths. It was detected as a strong and highly variable source by EGRET and has been reported several times to be in an active state by Fermi. It is one of the brightest -ray blazars detected in the southern sky so far. The TANAMI (Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry) program is monitoring PKS 0537−441 at VLBI resolutions. We present 8.4GHz and 22GHz images of the milliarcsecond scale structure. We also present our ongoing analysis of the spectral and temporal changes in this object.

History

Publication title

Proceedings of the Workshop "Fermi meets Jansky: AGN in Radio and Gamma-Rays"

Editors

T. Savolainen, E. Ros, R.W. Porcas, J.A. Zensus

Pagination

199-202

Department/School

School of Natural Sciences

Publisher

Max-Planck-Institut fur Radioastronomie

Place of publication

Bonn, Germany

Event title

Fermi meets Jansky: AGN in Radio and Gamma-Rays

Event Venue

Bonn, Germany

Date of Event (Start Date)

2010-06-21

Date of Event (End Date)

2010-06-23

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the physical sciences

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