Mystery cosmic radio blasts come with side of gamma rays
By
NASA
BLASTS of radio waves from space may deliver a much bigger wallop than expected. For the first time, we have seen one of these enigmatic fast radio bursts occurring together with a spurt of gamma rays, meaning their joint source may be a billion times more energetic than we thought.
FRBs have proved baffling since their discovery in 2007. Each torrent of radio waves lasts no more than a few milliseconds and we have only spotted 17 of them so far.
Finding accompanying signals at other wavelengths may be the key to decoding their source. But to observe such a paired event, we would have to be watching the same area of the sky with a radio telescope and a telescope operating at different wavelengths when an FRB occurs there.
“We’ve been really unlucky so far: we’re almost always looking in the wrong places to be helpful,” says Emily Petroff at the Netherlands Institute for Radio Astronomy.