Joint Institute for VLBI in Europe

Joint Institute for VLBI in Europe

The Joint Institute for VLBI in Europe (JIVE) was formed in 1993 by the major observatories of the European VLBI Network (EVN). JIVE operates the "EVN Data Processor" - a special-purpose supercomputer for astronomical VLBI data correlation. A recent demonstration of JIVE used seven nationally recognized telescopes electronically linked to create one of the largest virtual telescopes ever assembled. The huge Arecibo Observatory radio telescope in Puerto Rico, operated by Cornell University in cooperation with the National Science Foundation, recently was networked with six other telescopes in Italy, Sweden, Chile, the Netherlands, South Africa and Germany.

The telescopes were linked via high-speed research and education networks serving North America and Europe using techniques to overcome the drawbacks of TCP/IP and UDP (networking protocols) to allow sharing large volumes of data for immediate use. Using a technique called Very Long Baseline Interferometry (VLBI), the result was the equivalent of a single telescope nearly 11,000 kilometers in diameter.

The initial test case was setup to make real-time observations of quasar 3C454.3. The experiment was conducted by Express Production Real-time e-VLBI Service, a three-year project funded by the European Commission. Internet2, the U.S. advanced research and education network, handled some of the transport of the real-time signals.

This new high speed network link eliminates the shipping of disks of data from separate observations for correlation, allowing astronomers to respond to events as they happen in real time. The VLBI data was streamed to the Joint Institute for VLBI in Europe, where it was correlated and the results transmitted to Bruges, Belgium. This was part of a live demonstration at the Trans-European Research and Education Networking Association Conference (TERENA'08) held in May, 2008.

External links

* [http://www.jive.nl/ Website]


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