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Webb Telescope Pinpoints Origin of Farthest Fast Radio Burst to a Small Galaxy
Key points
- Webb telescope located the origin of a 2024 fast radio burst.
- The FRB occurred 3 billion years post-Big Bang in a small galaxy.
- Discovery supports supernova origin theory for fast radio bursts.
- Origin galaxy is 1,000 times smaller than previously expected.
Farthest Fast Radio Burst Traced
In 2024, the MeerKAT ground telescope array detected the farthest fast radio burst (FRB) observed so far. Fast radio bursts are brief, powerful radio waves from deep space, first discovered in 2007, whose origins are largely unknown. The James Webb Space Telescope has now been used to pinpoint the galactic source of this specific burst.
Discovery Details
Webb's near-infrared instruments identified a galaxy at the correct location. Analysis of its light stretching indicates the FRB occurred approximately 3 billion years after the Big Bang, during a period of peak star formation in the universe. The originating galaxy is also 1,000 times smaller than anticipated, contrasting with previous FRBs detected in massive, star-forming galaxies billions of years later.
Implications for FRB Theories
Two main theories explain FRB production: the merger of two neutron stars, which would typically occur in older galaxies, or the explosion of massive stars in a supernova, leaving behind magnetars. Manisha Caleb, lead author of the study published in Science, stated that the findings make a merger origin for this FRB unlikely. This supports the theory that some fast radio bursts originate from supernova events.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
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Reporting from
The James Webb Space Telescope identified the galaxy of origin for the farthest fast radio burst (FRB) detected to date, which occurred 3 billion years after the Big Bang. This discovery suggests the FRB likely originated from a supernova in a galaxy 1,000 times smaller than expected, challenging theories that favor neutron star mergers in older, larger galaxies.