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“International team of astronomers discovers 25 new sources of mysteriously repeating radio bursts in outer space”

The most distant galaxy. © NASA/Caltech

Reporter: Hari Ariyanti

Merdeka.com – An international team of astronomers discovered 25 new sources of rapidly repeating radio sound bursts in outer space. The source of this explosion comes from a location very far from the Milky Way galaxy.

A study published in The Astrophysical Journal this week helps shed light on the mysterious phenomenon.




The researchers, including a team of authors from McGill University in Quebec, Canada, collected data from the Canadian Hydrogen Intensity Mapping Experiment (CHIME) radio telescope.

To find the source of these radio bursts, they used a new set of statistical tools developed to examine data CHIME collected between September 30, 2019, and May 1, 2021.

“We combed the data to find every repeat source detected so far, including less obvious sources,” explained the journal’s first author, Ziggy Pleunis, quoted from Fox News, Sunday (30/4).

“This new tool is important for this study because we can now accurately calculate the probability that two or more explosions originated from the same location is not just a coincidence. It must be very useful for future similar studies,” said the McGill University PhD student.

Adaeze Ibik, a PhD student in the University of Toronto’s David A. Dunlap Department of Astronomy and Astrophysics, said scientists have identified possible related galaxies for the two sources of radio bursts or FRBs.

The exact origin of these FRBs is unknown, although astronomers know they originate outside our galaxy and were most likely produced by the ashes left behind after stars die.

One “unexpected” finding in the study contradicts previous beliefs: all FRBs may be repeats, not just singles. It noted that many repeat FRBs were found to be inactive, resulting in less than one explosion per week, and that one-time FRBs had not been observed long enough until now to detect a second explosion.

“FRBs were likely generated by the remnants of a death star’s explosion. By studying the sources of repeated FRBs in detail, we can study the environments in which these outbursts occur and better understand the final stages of a star’s life,” said Pleunis.

“We can also learn more about matter ejected before and during the death of a star, which is then returned to the galaxy where the FRB lives.”

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(mdk/sir)

2023-04-30 06:03:00
#Astronomers #Find #Mysterious #Repeating #Radio #Sound #Blasts #Outer #Space #merdeka.com #Merdeka.com

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