The discovery of a strange cosmic body in our galaxy that emits radio waves
He discovered a strange cosmic body called “GPM J1839-10” that emits radio waves (pulsing from a spot 15,000 light-years away) every 22 minutes. This is incredibly slow compared to other sources of pulsed radio waves.
According to a team led by astrophysicist Natasha Hurley-Walker at Curtin University's International Center for Radio Astronomy Research (ICRAR) in Australia, “the most likely explanation is that the source is a really slow-spinning magnetar. And if that's the case, it would change our understanding of star debris, which means something strange must be going on."
And Walker adds, “This wonderful object challenges our understanding of neutron and magnetic stars, which are among the most exotic and extreme things in the universe,” according to what was reported by the “Science Alert” website, according to the prestigious scientific journal “Nature”.
This discovery was made after a similar object was discovered in the Milky Way three years ago from archival data, according to the published research paper.
In this context, what is called GLEAM-X J162759.5-523504.3, has been recorded emitting radio waves for about a minute, every 18 minutes, despite the quiet of 2018 and has not been heard from since.
And based on the way the light is warped, it appears to come to us through a highly magnetized environment. Walker and her team wanted to see if they could find other objects that behaved the same way. So they took notes of the southern sky, using Australia's Murchison Widefield Array Survey. They found an object that emits bursts of radio light for five minutes every 22 minutes. Then they converted other telescopes to their coordinates, and scanned archival data for the site. The new observations allowed them to characterize the radio emissions in detail, demonstrating the same warping that suggests alteration by a magnetic field.
Archival data has also shown that GPM J1839-10 has been detected pulsating since at least 1988.
In this, Walker says, “I was five years old when our telescopes first recorded pulses from this object, but it was not noticed by anyone and remained hidden in the data for 33 years.” "They missed it because they didn't expect to find anything like it." Indicating, “The object that we discovered rotates very slowly so that it does not produce radio waves … Assuming that it is a magnetar, it should not be possible for this object to produce radio waves.” But we see it. And we're not just talking about a tiny flash of radio emission. Every 22 minutes it emits five pulses per minute of radio wavelength energy; And it has been for at least 33 years. Whatever the mechanism behind this is, it is unusual.”
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