The discovery of a giant planet similar to Jupiter, but it...

A recent study revealed the existence of a giant planet called b Cen (AB) b “Bsen (AB) b is similar to Jupiter and, unlike usual, orbits a very large star system in the constellation Centaur.

Its temperature is estimated at 18,000 degrees

This system consists of two stars and is called “b Cen It is heavy in weight, with a mass of six to ten times the mass of the sun, noting that no planet has been discovered so far around a star system of more than three solar masses.

And the European Southern Observatory quoted Stockholm University astronomer Markus Janssen, the lead author of the study published in the journal Nature, as saying that stars such as these two “constitute an environment that is considered destructive and extremely dangerous, so that it was thought that it was very difficult for large planets to form” in its surroundings.

And the surface of the star is more radiant than binary b Cen Far away, about 325 light-years from Earth, an estimated temperature of more than 18,000 degrees Celsius, more than three times the temperature of the sun. When the sun was still in the process of formation, its initial planetary disk, which is a cloud of gas and dust, witnessed the formation of planets, most notably Jupiter, by the dust conglomerate. Its rocky core then accelerated the gas that today forms the atmosphere of the solar system’s largest planet. But the stars are like b Cen So hot and bright that its light blows matter around it and there isn’t enough of it to form a rocky nucleus close to it, explained Gael Chauvin, an astronomer at the French National Center for Scientific Research, a member of the French-Chilean Joint Astronomy Unit, who co-authored the study.

The researcher asks, “What is the mechanism of the formation of planets that operate in such a harsh environment by very strong radiation?”, as observations by the Very Large Telescope of the European Southern Observatory in Chile and its “Sphere” instrument showed that a planet can form around a huge star. Although this is theoretically difficult.

Characteristics of the discovered planet

It is marked by a planet b Cen (AB) b Which this telescope photographed with distinctive characteristics. It belongs to the same type as Jupiter, that is, the gas giant planets, but its mass is about eleven times greater. More importantly, the distance that separates it from its two stars is enormous, which is 100 times greater than that which separates Jupiter from the sun. First, it was necessary to make sure that it was already in interstellar orbit b Cen Despite this distance that separates him from them. The surprise was when a return to the archive showed that the planet had been observed 20 years ago, but the small telescope at the time did not allow the observatory to determine its nature. The comparison with what was observed in 2000 confirmed that its movement is indeed the movement of a planet, and that it moves in the same way as its host star, that is, it is in its orbit.

As for how it was formed, “there is no likely scenario.” Although the observed system is young, and barely reaches its age of 15 million years, it is existing and fully formed, and it would have been possible to know what happened if it was in the process of formation, that is, if it was between one and two million years old. It is believed that the emergence b Cen (AB) b The formation of a rocky core was required by dust agglomeration at a large enough distance from the two stars, or by the phenomenon of gravitational instability, where part of the dust cloud may have suddenly collapsed on itself. Research is still in its infancy, and the international team working with Markus Janssen will seek to learn the planet’s chemical composition. This is expected to take a few years, and may allow the discovery of the most likely scenario for how the planet formed.

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F.Y.S.M. (AFP)

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