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e-VLBI detection of SN2007grPrinter-friendly version
DWINGELOO, The Netherlands (12 September 2007) - EXPReS is pleased to announce the distribution of Astronomer's Telegram #1215 regarding the e-VLBI detection of SN2007gr. This observation and the resulting publication are only possible because of the rapid response time of e-VLBI.
The observation was conducted on 6-7 September 2007 for 12 hours at 4.97 GHz with the the European VLBI Network (EVN) at an aggregate bitrate of 256 Mbps. The observation identified an unresolved source. It is therefore considered an e-VLBI detection of a supernova, and further observations are planned. Full details are available from the original telegram.
EXPReS would like to thank the participating telescopes Darnhall, Jodrell Bank (MkII), Medicina, Onsala, Torun and Westerbork for making Target of Opportunity observations possible.
The Joint Institute for VLBI in Europe (JIVE) is a scientific foundation with a mandate to support the operations of the European VLBI Network (EVN). The major activity has been the development, construction and successful operation of the EVN Data Processor, a powerful supercomputer that combines the signals from radio telescopes located across the planet, creating a single virtual telescope of intercontinental dimensions. Using this technique of Very Long Baseline Interferometry (VLBI), astronomers can make detailed images of cosmic radio sources, providing astronomers with the clearest, highest resolution view of some of the most distant and energetic objects in the Universe.
Express Production Real-time e-VLBI Service (EXPReS) is a three-year project funded by the European Commission with the objective of creating a distributed, large-scale astronomical instrument of continental and intercontinental dimensions. This electronic Very Long Baseline Interferometer (e-VLBI) is achieved using high-speed communication networks operating in real-time and connecting together some of the largest and most sensitive radio telescopes on the planet. EXPReS is coordinated by JIVE, the Joint Institute for VLBI in Europe, which is hosted by ASTRON, the Netherlands Foundation for Research in Astronomy, in Dwingeloo.
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