An Unknown Radio Burst was Detected by Astronomers

An Unknown Radio Burst was Detected by Astronomers
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As it was recently reported in The Great Lakes Ledger, the scientists were able to record an unusual and strong radio signal that reached Earth from an unknown source in the universe. This radio burst is amazingly low at 580 MHz, which is nearly 200 MHz lower than other signals that have been detected by the astronomers in the past.

What are the fast radio bursts?

Regarded as the most explosive and largely unknown events occurring in the universe, the fast radio bursts (FRBs) are able to create as much energy as 500 million suns in a space of milliseconds.

The signals detected by the astronomers have been repeatedly sending numerous FRBs from the same place in the universe, which allowed the scientists to estimate the location from which these signals are reaching our planet. This very unusual FRB was first noticed with the help of radio telescopes in British Columbia in Canada in the morning of July 25th. The date of this discovery was used to create a name for this event – FRB 180725A.

What is so special about FRB 180725A?

The most interesting thing about this discovery is the fact that the immensely strong signal was transmitted in very low radio frequencies of 580 MHz, making this event the first detection of a FRB lower than 700 MHz. The approximated width of this event was 2 ms. The signal was found at dispersion measure 716.6 pc/cm^3 with a signal-to-noise ratio S/N ~20.6 in one beam and 19.4 in another.

Following the detection of FRB 180725A, some other FRBs have been spotted, with a flux at very low frequencies of about 400 MHz.

The astronomers predict that these signals originate from a very distant place in the universe and their source is unimaginably energetic.

With the discovery of FRB 180725A, the scientists hope that we will be able to learn more about the early history of the universe, especially the Epoch of Reionization, when the interstellar medium, most of all hydrogen, became ionized.


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