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The compact radio structure of the high-redshift blazar J1430+4204 before and after a major outburst

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, , Citation Péter Veres et al 2010 J. Phys.: Conf. Ser. 218 012014 DOI 10.1088/1742-6596/218/1/012014

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1 Department of Physics of Complex Systems, Eötvös University, Pázmány P. s. 1/A, H-1117 Budapest, Hungary

2 Department of Physics, Bolyai Military University, POB 15, Budapest, H-1581, Hungary

3 FOMI Satellite Geodetic Observatory, POB 585, H-1592 Budapest, Hungary

4 Joint Institute for VLBI in Europe, POB 2, 7990 AA Dwingeloo, The Netherlands

5 MTA Research Group for Physical Geodesy and Geodynamics, POB 91, H-1521 Budapest, Hungary

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1742-6596/218/1/012014

Abstract

The high-redshift (z = 4.72) blazar J1430+4204 produced an exceptional radio outburst in 2006. We analyzed 15-GHz radio interferometric images obtained with the Very Long Baseline Array (VLBA) before and after the outburst, to search for possible structural changes on milli-arcsecond angular scales and to determine physical parameters of the source.

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10.1088/1742-6596/218/1/012014