Study reveals the'' normal'' that was born with the Sun

Opposing to what was previously thought, the birth of the Sun did not occur in exceptional condition, and many other stars were formed at the same time, according to a study published in the journal Astronomy and Astrophysics.

Matthieu Gounelle, the French research center CNRS, and Georges Meynet, Geneva Observatory, were able to establish the "genealogy" of the Sun from the presence of a radioactive element,

aluminum 26 (26Al), at the beginning of the solar system, four thousand 500 million years, explained the French National Museum of Natural History said in a statement.

It was long attributed the existence of this radioactive isotope of aluminum in the nascent solar system to the presence of a supernova that was detonated near the Sun when it was forming. The rarity of the phenomenon would imply the occurrence of "exceptional circumstances" in the formation of the solar system.

However, based on astronomical observations of young stars in calculations, the researchers showed that the aluminum 26 wind comes a big star born millions of years before the Sun

According to them, this star not only synthesized aluminum 26 then found in meteorites, but also led to the formation of the Sun This also would not be a single star, but that would have been born along with hundreds of "brothers and sisters twins" of identical chemical composition, which were scattered across the galaxy.

The authors show that the star "parent" of the Sun, called'' proposed'' Coatlicue (the mother of the Sun in the Aztec cosmogony), had a mass of about 30 times that of the Sun was born at the same while another 2,000 stars, was the heaviest of his generation, died in a massive supernova explosion.

According to the National Museum of Natural History, being ultimately a generic mechanism of formation of stars, the Sun is because "a star banal".