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American Focus > Blog > Tech and Science > Fast Radio Burst Source Traced Record Distance Across The Universe : ScienceAlert
Tech and Science

Fast Radio Burst Source Traced Record Distance Across The Universe : ScienceAlert

Last updated: August 11, 2025 9:45 pm
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Fast Radio Burst Source Traced Record Distance Across The Universe : ScienceAlert
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Unraveling the Mysteries of Fast Radio Bursts

Fast radio bursts (FRBs) are astronomical phenomena that last only around a millisecond but carry crucial information about the plasma that fills our Universe. These bursts provide valuable insights into magnetic fields and gas distributions, shedding light on the structure of the cosmos.

A recent paper authored by Manisha Caleb from the University of Sydney unveils the discovery of FRB 20240304B, a signal that originated at a redshift of 2.148 +/- 0.001, equivalent to just 3 billion years after the Big Bang.

FRB 20240304B was first detected on March 4, 2024, by South Africa’s MeerKAT radio telescope array. What sets this finding apart is its extraordinary distance, with a redshift of z = 2.148±0.001, indicating a time period roughly 3 billion years post-Big Bang. This suggests that the radio waves from this burst traveled over 11 billion years to reach Earth.

Exploring the Origins of FRB 20240304B

Pinpointing the source of FRB 20240304B required a collaborative effort across multiple observatories. Initial attempts to locate the burst’s host galaxy using ground-based observatories fell short. However, follow-up observations with JWST’s NIRCam and NIRSpec instruments successfully identified the host galaxy and obtained a spectroscopic redshift.

The radio waves from FRB 20240304B dispersed at a rate of approximately 2,330 parsecs per cubic centimeter during their cosmic journey, indicating a distant origin. This dispersion serves as a unique fingerprint revealing the vast distances the signal traversed.

This discovery extends the redshift reach of localized FRBs, offering insights into ionized baryons across a significant portion of the Universe’s history. Previous FRB detections had limitations in reaching back in cosmic time, but FRB 20240304B pushes the boundaries to the Universe’s early stages.

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Insights from the Host Galaxy

FRB 20240304B was detected by the MeerKAT radio telescope in South Africa. Subsequent observations with the James Webb Space Telescope revealed the signal’s origin in a low-mass, clumpy galaxy. The youth and star-forming activity of the host galaxy suggest a possible connection to young magnetars, supporting prevailing theories on FRB origins.

Moreover, the discovery unveils intricate magnetic field structures spanning gigaparsec scales, indicating complex interactions as the radio waves traveled through space. This finding also highlights FRB activity during the peak of star formation, offering a window into galaxy evolution during a critical phase in cosmological history.

Looking to the Future

As next-generation telescopes come online, discoveries like FRB 20240304B pave the way for exciting advancements in our understanding of the Universe. These fleeting signals from the distant past serve as messengers, unraveling the cosmic evolution from its chaotic beginnings to the structured cosmos we observe today.

This article was originally published by Universe Today. Read the original article.

TAGGED:burstDistanceFastradiorecordScienceAlertsourcetraceduniverse
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