" المستعر الأعظم الذي شكل نظامنا الشمسي "
"The supernova that shaped our solar system"
Millions of years ago, a huge star exploded and its bowels were thrown into space. At that high-energy moment, the so-called supernova (the supernova) with a fundamental collapse formed a cloud of new atoms, formed in the heat of its explosion. Time passed.
The cloud shrank and attracted to itself under the influence of its attractiveness. A star formed - our sun - surrounded by pieces of rocks and gas that formed our planets and other orbital objects. Then much later, we came.
That is the basic story of the birth of our solar system.
Often by watching other supernovae and the birth of other stars in space, scientists have learned quite a bit about it. But there is still much to know about what happened during the mysterious asteroid explosion.
What exotic and energetic particles exploded in that first and hot flash of the death of the old star? How did it form the atoms and molecules that formed humans? How long has it passed between the death of the star and the resurrection as our sun?
In a new paper published on September 4 in Physical Review Letters, the researchers suggested a new way to answer those questions.
When the old star exploded, a rare type of ghostly antithesis of a neutron particle - the so-called "neutral neutrino electron" - broke into existence and collided with material surrounding the supernova.
These collisions helped to produce a radioactive counterpart of the 98Tc technetium. If the researchers knew how much 98Tc was produced and what happened to it, they would be able to describe that dying explosion in more detail.
They will also be able to calculate the time when supernova occurs more accurately.
But something special about 98Tc is that it breaks down rapidly after it is formed, and decomposes to a radioactive counterpart of the ruthenium, called 98Ru. There was not much of it in the first place.
However, the researchers suggested in their research that the effects of 98Tc may be relatively simple to detect and measure in the case of meteorites that sometimes fall on Earth, since these ancient rocks have not been tangled and affected greatly since the birth of the solar system.
They calculated that the supernova electron of our supernova, which formed our sun, should have produced barely enough 98Tc as its decay products could be detected in meteorites after all these billions of years.
The researchers wrote that with patience and careful measurement, the experimenters can accurately measure those effects.
By measuring accurately enough, they may be able to uncover the secrets of that huge explosion that is the ancient history of almost every atom in your body.
The original article was published in the "
"Live Science.
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