Mysterious radio waves from the heart of the Milky Way surprise astronomers

A team of scientists from around the world discovered the object at the center of the Milky Way using the CSIRO radio telescope on Australia Occidental. Ziteng Wang, lead author of the study and doctoral student at the University of Sydney, said in a press release that they initially believed it could be a rotating dead star called a pulsar, but that its signal did not match what they expected. those kinds of celestial objects.

“The strangest property of this new signal is that it has a very high polarization,” Wang said. “This means that its light oscillates in only one direction, but that direction rotates over time.”

The object and the radio waves it emits have surprised astronomers.

“The brightness of the object also varies dramatically, by a factor of 100, and the signal turns on and off seemingly randomly,” added Wang. “We have never seen anything like it.”

The radio signal, call ASKAP J173608.2-321635 after its coordinates it was “unique” because it started out invisible, then turned bright and faded before reappearing again, he said Tara Murphy, Wang’s PhD supervisor and Sydney professor of the Institute of Astronomy and Faculty of Physics. “This behavior was extraordinary,” he said.

Mysterious radio waves were detected in 2020

Scientists detected six radio signals from the source in the Milky Way for nine months in 2020 and they tried to find the object with visual light, but found nothing. They chose to use the CSIRO radio telescope and they did not recognize the source.

According to the press release, the signals do not conform to any currently understood variable radio source pattern, and could suggest a new class of stellar object.

“The information we have has some parallels with another emerging class of mysterious objects known as Galactic Center Radio Transients, including one dubbed a ‘cosmic burper,’ “said Wang’s co-director, David Kaplan, professor at University of Wisconsin. Milwaukee.

“While our new object, ASKAP J173608.2-321635, shares some properties with GCRTs, there are also differences. And we don’t really understand those sources anyway, so this adds to the mystery, “he said.

As scientists continue to watch for more clues, sources of other radio signals have been detected in recent months from the Milky Way. In May, the NASA tracked down the source of mysterious fast radio bursts that send signals to the Land, on The Truth News we will follow the latest news from the astronomy like a planet the size of Earth could hide beyond Neptune.

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