Rapid radio burst is first detected in the Milky Way



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For the first time since the mysterious rapid radio bursts began to be detected, scientists have managed to capture one of these cosmic phenomena here in the Milky Way. The origin of the incredibly fleeting and enigmatic pulse of energy dates back to a magnetar, a neutron star with super-powerful magnetic fields, located 30,000 light-years away from Earth and the signal was so intense that it could have been observed even from another galaxy.

Riddle

Rapid radio bursts are, as we mentioned, extremely powerful and ephemeral pulses of energy that, despite being observed for several years, remain a mystery to scientists. Typically, the signals release an amount of energy that may be greater than that produced by 500 million stars like our Sun, but because they are random, they are hardly followed by repeats, last only milliseconds, and generally move away from galaxies located A million light years away, studying these events is a challenge for astronomers.

Fleeting phenomenaFleeting phenomenaSource: The Daily Galaxy / Reproduction

In fact, it was only recently that astronomers began to discover where these pulses came from, but there is still a lot of debate about what kind of phenomenon or star could be behind these events. Among the theories put forward so far, we know that scientists included supernovae (explosive deaths from supermassive stars) and even possible alien civilizations (you will know…), as well as magnetars, that is, neutron stars formed by supernova remnants.

These stars have the peculiarity of being incredibly dense and have magnetic fields a thousand times more intense than conventional neutron stars. This effect is the result of the immense gravitational force that keeps these stars cohesive, and the result is that, in addition to the gravitational fields that cause distortions in the shape of these stars, the stresses between these two forces (gravitational and magnetic) can generate “starbucks” and release colossal energy flows.

End of the cosmic mystery?

In the case of the pulse now recorded, although its duration was only the blink of an eye, it was captured by several radio telescopes and teams scattered across the planet on April 28, and its origin appears to have been a magnetar known by the acronym SGR 1935. + 2154 located here in our galaxy.

On the eve of the event, instruments in various parts of the world detected an increase in the star’s activity, but nothing out of the ordinary. However, the next day, the Canadian CHIME telescope – short for Canadian Hydrogen Intensity Mapping Experiment – Focused on tracking the cosmos in search of passing phenomena, it still targeted SGR 1935 + 2154 and captured a signal so intense that the team’s system couldn’t even quantify it.

It appears that magnetars are the sources of the pulses.It appears that magnetars are the sources of the pulses.Source: European Southern Observatory / Reproduction

In addition to CHIME, another project, STARE 2, led by researchers from Caltech, USA. And created exclusively to detect fast radio bursts, it also recorded the pulse. And it was not only that: in addition to the strong signal, the X-ray release was captured, something that is quite common to register in magnetars, which supports the possibility that the explosions are related to these stars and, in this specific case , have even produced by SGR 1935 + 2154. Calm down … “has been“?

As the detection of these rapid radio bursts occurred a few days ago, scientists are still focusing on all the observations and data collected by instruments scattered around the world, and even some that are in orbit, and will still have to do surveys and Carefully monitor SGR 1935 + 2154 activity to confirm that the pulse came from there, as evidenced by (strongly) evidence so far.

In addition, there is the question of X-rays, because, as until now all the explosions identified had their origin in distant galaxies, this peculiarity had not yet been registered. But this parallel version indicates that the enigmatic phenomenon may also be accompanied by other cosmic events, which would help to identify them and unravel the mysteries that surround them.

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