The discovery of ancient galactic radio signals was revealed in the Royal Astronomical Society’s Monthly Notices journal last weekend. The radio signal is known to be captured by the Giant Metrawave Radio Telescope (GMRT) in India.

In the data processed by the GRMT, the position of the radio signal is known to come from the galaxy SDSSJ0826+5630. The location of the galaxy is nearly 8.8 billion light from Earth. This means that the signal was emitted when the universe was about one-third the size of its current age.

We know that the signal is not a signal sent by extraterrestrials or aliens . Instead of the signal, it is a spatial phenomenon in the form of an emission line from the oldest element in the universe, namely neutral hydrogen.

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The signal says that Live Science was formed from the Big Bang and the element is present throughout the cosmos as a turbulent haze. It was from this that the initial processes of the first stars and galaxies were formed.

Astronomers have long searched for distant signals from neutral hydrogen in hopes of finding the moment when the first star began to shine. However, given the extraordinary distance, the signal is very difficult to recognize.

“A galaxy emits different types of radio signals. It’s just that the signal can only be picked up in nearby galaxies. This limits our knowledge of other, more distant galaxies,” said McGill University cosmologist Arnab Chakraborty. , in Canada, in an official press release. statement.

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The signal was only captured after an attempt at gravitational lensing. This effort helped astronomers find evidence of neutral hydrogen.

From this method, the GMRT telescope is able to pick up distant signals because it has been deflected by another galaxy located between the signal and the telescope. “This effectively results in a 30-fold magnification of the signal, allowing telescopes to pick it up,” said Nirupam Roy, a professor at the Indian Institute of Science.

Arnab Charaborty also said the findings would help people understand the composition of galaxies at much greater distances from Earth. He added that the findings would also open up opportunities to study the cosmic evolution of stars and galaxies with existing technologies, such as low-frequency radio telescopes.

(wsb)