Daily Image
20-02-2007
First 512 Mbps e-EVN image
| Submitter: | Zsolt Paragi |
| Description: | As reported before in these pages, the data taken with the European radio telescope network may now flow to the central processor in Dwingeloo through optical fibres (rather than being transported with tapes or disks). This is called e-VLBI. The data-rate through the fibres has been steadily increasing. On 2007 February 2 we carried out the first successful 5-station e-VLBI run at a rate of 512 Mbps. Participating telescopes were in Cambridge, Jodrell Bank (MkII), Medicina, Onsala, Westerbork (single dish). The observation ran for about an hour without notable problems. We observed 3C454.3, a strong fringe-finder source. In spite of the poor uv-coverage, we were able to reconstruct the basic source structure at a dynamic range of about 400:1. This result shows that sensitive e-VLBI experiments (on more interesting objects) will be possible in the near future, when more telescopes join the e-VLBI array in 2007. |
| Copyright: | JIVE |
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