Research Article

A single fast radio burst localized to a massive galaxy at cosmological distance

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Science  09 Aug 2019:
Vol. 365, Issue 6453, pp. 565-570
DOI: 10.1126/science.aaw5903

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Pinpointing a single fast radio burst

Fast radio bursts (FRBs) are flashes of radio emission from distant astronomical sources. Two FRBs are known to have repeated, but most last just a few milliseconds and are never seen again. Most telescopes that are sensitive to single FRBs have poor angular resolutions, so the FRB host galaxies remain unknown. Bannister et al. used a dedicated observing mode on a radio interferometer to detect and localize the nonrepeating FRB 180924, then followed up with optical telescope observations (see the Perspective by Petroff). They found that the FRB came from a medium-sized galaxy at a cosmological distance. Localizing FRBs will help determine their causes and allow them to be used as cosmological probes.

Science, this issue p. 565; see also p. 546

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