Fast radio bursts may provide 3D map of cosmos

Brief bursts of radio waves arriving from far-off galaxies could help astronomers estimate cosmological distances and piece together a 3D map of matter in the universe. If everything checks out, a new technique proposed by two cosmologists from the University of British Columbia will offer an independent metric – set apart from the uncertainties and systemic biases of existing methods – in plotting the large structures of the cosmos.

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CrazyNeutrino said:

Fast radio bursts may provide 3D map of cosmos

Brief bursts of radio waves arriving from far-off galaxies could help astronomers estimate cosmological distances and piece together a 3D map of matter in the universe. If everything checks out, a new technique proposed by two cosmologists from the University of British Columbia will offer an independent metric – set apart from the uncertainties and systemic biases of existing methods – in plotting the large structures of the cosmos.

more..

They would have to be from quasars, wouldn’t they. Anything else would be either invisible at that distance or too slow. Quasars are notoriously bad at providing a distance scale for the cosmos, so I really think that while this would confirm what we already know about such objects as FSRQ (flat-spectrum radio quasars), and even tell us more about these objects, it won’t tell us any more about the cosmological distance scale.