Star closest to the Sun records record explosion Planet

Proxima Centauri presented one of the most violent explosions ever seen throughout the Milky Way, whose study helps even in the search for life on other planets 22/04/2021 Share on Facebook Tweet on Twitter Star closest to the Sun records record explosion Planet tweet Star closest to the Sun records record explosion Planet Artistic conception of the violent stellar explosion of Proxima Centauri discovered by scientists in 2019 using nine telescopes across the electromagnetic spectrum.

Large flames are ejected from Proxima Centauri regularly, impacting the stars planets almost daily.

Credit: NRAO/S.

Dagnello Scientists have identified the largest eruption ever recorded from the closest neighbor of the Sun, the star Proxima Centauri.

The research, led by the University of Colorado at Boulder (USA), can help shape the quest for life beyond the Solar System.

Was it published in the magazine? The Astrophysical Journal Letters? Astrophysicist Meredith MacGregor, assistant professor at the University of Colorado at Boulder, explained that Proxima Centauri is a small but powerful star.

It is only four light years (more than 31.1 trillion kilometers) from our Sun and hosts at least two planets, one of which may resemble Earth.

It is also a red dwarf, the name of a class of stars that are exceptionally small and weak.

It has about an eighth of the mass of the Sun.

In the new study, MacGregor and his colleagues observed Proxima Centauri for 40 hours using nine telescopes in soil and space.

In the process, they had a surprise: Proxima Centauri ejected a flash, or an explosion of radiation starting near the surface of a star, which has been classified as one of the most violent ever seen anywhere in the galaxy.

Quick change? Did the star go from normal to 14,000 times brighter when viewed at ultraviolet wavelengths in the interval of a few seconds? , MacGregor said.

The teams findings suggest a new physics that can change the way scientists think about stellar explosions.

They are also not a good omen for any soft organism brave enough to live near the volatile star.? If there was life on the nearest planet of Proxima Centauri, would it have to be very different from anything on Earth? , said MacGregor.? A human being on this planet would have a bad time.

The star has been a target for scientists hoping to find life beyond the Earths solar system.

Proxima Centauri is close, for starters.

It also hosts a planet called Proxima Centauri b that resides in what researchers call the habitable zone? a region around a star that has the right range of temperatures to house liquid water on the surface of a planet.

But there is a twist, MacGregor said: the red dwarfs, which classify themselves as the most common stars in the galaxy, are also exceptionally alive.

Active stars? Are many of the exoplanets weve encountered so far around these kinds of stars? , she said.? But the problem is, theyre much more active than our sun.

They shine much more often and intensely.? To see the dimensions of the explosion at Proxima Centauri, she and her colleagues performed what approaches a blow in the field of astrophysics: they pointed nine different instruments to the star for 40 hours over several months in 2019.

These eyes included the Hubble Space Telescope, the Atacama Large Millimeter Array (Alma), and NASAs Transiting Exoplanet Survey Satellite (Tess).

Five of them recorded the massive explosion of Proxima Centauri, capturing the event that produced a broad spectrum of radiation.

Is this the first time weve had this kind of multi-wavelength coverage of a stellar explosion? , said MacGregor.? Normally, youre lucky if you get two instruments.

Artistic conception of the violent stellar eruption in Proxima Centauri.

The flare is the most powerful flare ever recorded from the star and is giving scientists insight into the quest for life in Dwarf M star systems, many of which have exceptionally active stars.

Credit: NRAO/S.

Dagnello Crunchy Planet The technique provided one of the deepest anatomies of an eruption of any star in the galaxy.

The event in question was observed on May 1, 2019 and lasted only 7 seconds.

Although it did not produce much visible light, did it generate a large wave of ultraviolet and radio radiation, or radiation? millimeter? ? In the past, we didnt know which stars could shine in the millimeters range, so this is the first time weve looked for flames of millimeters? , MacGregor said.

These millimeter signals, MacGregor added, can help researchers gather more information about how stars generate flames.

Currently, scientists suspect that these energy explosions occur when magnetic fields near the surface of a star twist and break down with explosive consequences.

Other surprises Altogether, the observed eruption was about 100 times more powerful than any similar eruption seen from our Sun.

Over time, this energy can destroy a planets atmosphere and even expose life forms to deadly radiation.

This type of rash may not be a rare occurrence in Proxima Centauri.

In addition to the major explosion in May 2019, researchers recorded many other flames during the 40 hours they spent watching the star.? Are Proxima Centauri planets being hit by something like this not once in a century, but at least once a day, if not several times a day? , MacGregor said.

The findings suggest that there may be more surprises in the area of the Suns closest companion.? There will probably be even more strange kinds of signs that demonstrate different kinds of physics that we didnt think about before? , MacGregor said.

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