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​The EXPReS project

The Challenge

Data from radio astronomy projects was previously collected at each telescope on magnetic tapes and later onto hard disk. These physical media had to be transported by courier, taking several days to reach their destination.

The Solution

Now, information is sent from telescopes to the central computer in just seconds, enabling astronomers to create real-time views of the outer reaches of the universe.
The EXPReS project uses dedicated high-speed GÉANT links to connect remote radio telescopes across Europe to a central data processor at JIVE, the Joint Institute for Very Long Baseline Interferometry in Europe, situated in the Netherlands. Here the enormous volumes of simultaneous observation data that are transmitted over the network are correlated to form very sharp, high-definition images of cosmic radio sources.

Key benefits

Use of high-speed network links has also enabled "Target of Opportunity" and "Rapid Response" science, giving the ability to observe unexpected astronomical events such as supernova explosions and gamma ray bursts.

​ “The EXPReS project has been transformed by our connection to the GÉANT network. Whilst the advancement of telescope technology means we can now carry out years’ worth of observations in days, the ability to then transfer that vast quantity of data between astronomers at such high speed means the pace of our research has accelerated beyond recognition, with real-time collaboration now a reality.”
Professor Ralph Spencer, Jodrell Bank Observatory

 

 

​See also

Visit the EXPReS project website

Visit the JIVE website

Read about observation of supernovae explosion in Connect April issue

Browse 8th International e-VLBI workshop proceedings
   
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