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EVN & MERLIN studies of a new sample of BL Lac objects

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Authors
Bignall, Hayley
Landt, H.
Reynolds, C.
Padovani, P.
Perlman, E.
Date
2006
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Conference Paper

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Bignall, Hayley and Landt, Hermine and Reynolds, Cormac and Padovani, Paolo and Perlman, Eric. 2006. EVN & MERLIN studies of a new sample of BL Lac objects, in Andrzej Marecki (ed), Proceedings of the 8th European VLBI Network Symposium., Sep 26-29 2006, pp. 026-026. Torun, Poland: European VLBI Network.
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Proceedings of Science
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Proceedings of the 8th European VLBI Network Symposium.
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This article is published under the Open Access publishing model and distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/. Please refer to the licence to obtain terms for any further reuse or distribution of this work.

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Abstract

The recent Deep X-ray Radio Blazar Survey (DXRBS) has identified a sample of BL Lac objects spanning the intermediate range of spectral energy distributions between “classical” X-ray selected and radio-selected samples of BL Lacs. Detailed studies of such samples are needed to answer some of the currently open questions regarding the nature of BL Lacs and their place in a unified model of AGN. High-resolution radio imaging provides direct information on jet evolution and beaming parameters. We present some preliminary results from EVN & MERLIN observations of sources in the DXRBS BL Lac sample for which little or no high-resolution radio data were previously available.