There are three radio pulses of one minute each hour – Corriere.it

There are three radio pulses of one minute each hour – Corriere.it
From Paolo Virtuan

It could have been a magnet for a very long time, predicted by astrophysical theories but not yet found. It is 4000 light years away from us

A group of Australian astronomers determined a distance of 4,000 light-years from Earth, in the Milky Way, A rotating object that resembles nothing known so far: Three times every hour it emits an intense radio frequency pulse for a long duration, about 60 seconds.

Similar pulsating objects have been documented many times in the universe, but none is capable of emitting a consistent frequency for such a long duration.

discovery

The first report was prepared by Curtin University astronomy student Tyrone O’Dherty, thanks to Murchison Widefield Array Low Frequency Radio Telescopeconsisting of 4,096 spider-shaped antennas arranged in 256 regular grids, located in a remote area of ​​Western Australia, and a new technology developed by it.

He. She A study published in “Nature”Led by Natasha Hurley Walker. “This thing appears to appear and disappear over the course of a few hours during our observations,” the scientist said. “It’s a strange thing for an astronomer, because nothing is known in the sky to behave in this way.”

neutron stars

Due to similar items The last stages of life for massive stars that explode in supernovae or what’s left of them, such as neutron stars. The latter, however, is known as pulsar, emits radio frequencies in very fast pulses: between a second and a few thousandths of a second. It definitely doesn’t last a minute.

According to Dr. Hurley Walker, the mysterious object is very bright, smaller than the sunIt has a very intense magnetic field and emits highly polarized radio waves.

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A new type of magnet

The notes provided are compatible with Ultra long lasting magneticpredicted by astrophysical theories but not yet found. “It’s a very slowly spinning type of neutron star that would have been theoretically expected, but no one expected to see a star this bright. Some mechanisms convert magnetic energy into radio waves more efficiently than previously seen. We must continue with observations and studies.”

Jan 27 2022 (change on Jan 27 2022 | 09:08)

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