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


Hungwe, F and Ojha, R and Kadler, M and Booth, R and Blanchard, JM and Lovell, JEJ and Muller, C and Bock, M and TANAMI Team, The, VLBI Monitoring of the bright gamma-ray blazar PKS 0537-441, Proceedings of the Workshop "Fermi meets Jansky: AGN in Radio and Gamma-Rays", 21-23 June 2010, Bonn, Germany, pp. 199-202. (2010) [Non Refereed Conference Paper]


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.

Item Details

Item Type:Non Refereed Conference Paper
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Cosmology and extragalactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Blanchard, JM (Mr Jay Blanchard)
UTAS Author:Lovell, JEJ (Dr Jim Lovell)
ID Code:73347
Year Published:2010
Deposited By:Mathematics and Physics
Deposited On:2011-09-27
Last Modified:2011-09-27

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