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A newborn star shows the X-Ray: hints for the evolution of the Sun

A newborn star shows the X-Ray

The astrophysicists from the NASA Chandra X-ray Center first recorded x-rays emitted by a newborn star. At the earliest stage of the evolutionary development of the star, that is similar to our Sun, the X-rays were detected. That discovery will provide a new data on both the modern Sun and the solar system. The first X-ray flare was obtained from the young "protostar" HOPS 383.

It is located in a distance of about 1400 light-years from the Earth. It was first recorded in December 2017. The astronomers said that such discovery could change the timeline that determined the moment of the first X-ray from stars like the Sun.


Having discovered an X-ray flare on a very young star, the researchers set a timeline. With its help, they intend to find out a new data on the earliest stages of the Sun formation. The young star that sent the rays is surrounded by a cocoon. It contains about half of the total mass of the protostar. Most of the light of a young star cannot penetrate through the cocoon, but its X-rays are very powerful. Inside the cocoon, the star scatters infrared radiation and forms a bright X-ray flash.

It was first recorded in December 2017. The equipment recorded that the flash lasted 3 hours 20 minutes. It was fixed as a continuous loop shape. But beyond that period, the scientists no longer recorded any X-rays from the protostar.

They suggest that the radiation was, but, most likely, they were ten times weaker and therefore turned out to be almost invisible to the equipment. Most likely, such power of flashes can be ordinary, traditional. And that outbreak, which was recorded at the end of 2017, could be more powerful than usual at least in 2 thousand times.


The astrophysicists have found that when material from a cocoon enters a disk, a powerful emission of dust and gas immediately occurs. That process was called the outflow, it was seen by the astronomers, calling the process a powerful X-ray flash.

Now the astrophysicists will need longer X-ray observations to determine how often such flares occur at that very early phase of the development for the stars like our Sun.