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Lofar opens up low-frequency universe, starts new seti search

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Geplaatst op 21 april 2010 - 09:41

LOFAR opens up low-frequency universe

The Low Frequency Array (LOFAR), a new pan-European radio astronomy facility, has started mapping the Universe at very low energy wavelengths, a part of the electromagnetic spectrum that is relatively unexplored. It will detect faint signals from the first stars and mini-black holes that emerged when the Universe was only 500 000 years old - and will also be looking for signs of other civilisations in the Universe closer to home. Dr John McKean will present the first images at the RAS National Astronomy Meeting (NAM) 2010 in Glasgow on Tuesday 13th April.

"We are still in the construction phase of the project, with 21 out of the 44 planned stations in place. But even now, we are producing images of galaxies that are truly outstanding. Our first images show the emission from radio galaxies with jets of material that are ejected at relativistic speeds from the central supermassive black hole, ending with hot-spots as the material clumps together. The image quality from LOFAR is just amazing, compared to telescopes we have been using up until now," said Dr McKean, of the Netherlands Institute for Radio Astronomy (ASTRON).


Lees verder: http://www.astron.nl...-search/lofar-o

Bron: Astron.nl

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