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Very Long Baseline Interferometry (VLBI) is a technique in which an array of physically independent radio telescopes observes simultaneously to yield high-resolution images of cosmic radio sources. Today, magnetic tape transports data from telescopes to computers. The European VLBI Network (EVN) has access to multiple data sources that can deliver 1Gbps each and a data processor that can process 16 data streams simultaneously. High-speed networks would enable the EVN to achieve many-fold improvements in bandwidth.

Acknowledgment: SURFnet.

Steve M. Parsley
Joint Institute for VLBI in Europe (JIVE), The Netherlands

Steve M. Parsley, Martin Leeuwinga, Sergei Pogrebenko, Cormac Reynolds, Richard Schilizzi, JIVE, The Netherlands
Ari Mujunen, Jouko Ritakari, Metsahovi Radio Observatory, Finland
Ralph Spencer, Paul Burgess, Jodrell Bank Observatory, University of Manchester, UK
Alan Whitney, Haystack Observatory, Massachusetts Institute of Technology, USA
Richard Hughes-Jones, P. Diamond, University of Manchester, UK
Peter Clarke, Department of Physics and Astronomy, University College London, UK
Cees de Laat, University of Amsterdam, The Netherlands