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7 votes
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Why is it called "The LOFAR 'superterp'"? What is a terp, and what's so super about this one?

Terp is a Frisan and Dutch word meaning a low artificial hill for shelter during a high tide. See Wikipedia. Before dykes were built, farmstead were built on terpen to protect them from the frequent ...
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5 votes
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What is notable about LOFAR's sub-arcsecond radio resolution of distant galaxies? Does lower freq. range enable new capabilities that mm wave can't?

I'm one of the researchers involved with the International LOFAR Telescope (ILT) scientifically and technically, and have also contributed one of the papers and images you may have seen appear on ...
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3 votes

Why did it take five years to "figure out" how to use astrometric calibration sources to deblur LOFAR images?

The point of the paper is not that no calibration has been used previously. It points out that they now use a more refined method and set of parameters to calibrate the data. That in general is usual ...
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3 votes
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How is it determined that the X-ray and radio intensity come from a magnetic field bridge between two clusters of galaxies?

I think the answer is that it's primarily a matter of association on the sky, though there are some (weak) additional constraints. The first thing to note is that there are three observations that ...
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