Thursday , July 29 2021

They detected some mysterious cosmic signals from an unknown galaxy



A new mystery keeps astronomers in suspense. A Canadian telescope has detected new radio waves of a galaxy of unknown origin. One of the points that caught the attention of the experts was that one of them repeats in an unusual way.

According to an article published in the renowned journal Nature, the mysterious radio waves – milliseconds long – come from a distant place in the Milky Way, to 1,500 million light-years.

However, even scientists they could not determine exactly their nature or origin. Since last year, they have detected 13 explosions of this style, known as FRB (rapid radio burst for its acronym in English).

But so far they had only detected a repetitive signal, they called it FRB 121102. They captured it in 2012 and were repeated 16 times. After an investigation, they discovered that it came from a dwarf galaxy located 3,000 million light years. This new wave, which they called FRB 180814.J0422 + 73, was repeated six.

"Knowing that there is another (sound event) suggests that there could be more out there"Ingrid Stairs, an astrophysicist at the University of British Columbia (UBC), said that with these new directions they will be able to better understand" these cosmic puzzles "and be able to decipher where they are from and what causes them.

This latest discovery occurred at the Chime Observatory, in the Okanagan Valley, British Columbia, Canada. It consists of four half-cylindrical, 100-meter-long antennas that explore the entire Northern Hemisphere sky every day.

Regarding the second repetitive signal they detected, the researchers stated that it has properties very similar to the first. "This tells us more about the properties of repetitive ones," said Shriharsh Tendulkar of McGill University.

The versions about what could be their origins are several. One is that it can be a neutron star with a very strong magnetic field that rotates very quickly, or maybe its origin is the result of two merging neutron stars. There are very few experts who point out that it could be from an alien spacecraft.


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