Just as the Earth revolves around the sun, so most planets discovered beyond our solar system revolve around a star -host. But there are some who are out there, completely alone, and are called “Scammer planets”. While their origin is not fully understood, astronomers have now identified an unstoppable man who offers new elements for these lonely worlds.
Researchers said that this stray planet, called CHA 1107-7626, has about five to ten times larger mass than Jupiter, the largest planet in our solar system. It was observed during a strong explosion just as a young star was formed, as it devoured its round surroundings at a pace that had never been observed before such an object.
At its climax, during August this year, he consumed this material at a rate of six billion tonnes per second, about eight times faster than a few months earlier.
“The explosion we have detected is excellent, as it looks like some of the most intense stages of growth in young stars. He reveals that the same physical processes that lead to the formation of the stars can also occur on a planetary scale, “said astronomer Victor Almenros-Abad of the Inaf Astronomical Observatory in Palermo in Italy and lead author of the study this month.
“This object is about one to two million years old. He is very young for astronomical data, “said Almenros-Abad.
Almenros-Abad said the planet-scammer seems to be in his final stages of formation and is not expected to gain much greater mass. Researchers believe that it has powerful magnetic fields that channel material from the turbocharged disc inward, a phenomenon that has so far been observed only in stars.
The researchers noticed the Cha 1107-7626 using the very large telescope of the European South Observatory based in Chile. It is located in our galaxy, about 620 years of light from Earth, in the constellation chameleon.
Stray planets, also called freely floating planetary objects, usually have a mass of mass than Jupiter, there are isolated systems that are freely hovering in space and are not gravitally connected to a star-guard.
“How these objects are formed is still an open question,” said Belinda Damian, astronomer at the University of St. Andrew in Scotland, who is a co-author of the study.
Theoretically, Damian said, they can form like the stars through the collapse of a gas and dust cloud, known as a molecular cloud, or they can form like an ordinary planet on a material tray that revolves around a newborn star only.
While Cha 1107-7626 is similar to the way a star is formed, it will not even come close to reaching the mass necessary to trigger hydrogen fusion in its core such as a star. Other celestial objects called brown dwarfs are also formed in this way and fail to become stars.
The Cha 1107-7626 can provide a fuller understanding of how some stray planets are born.
“This is a truly exciting discovery, because we usually tend to think of the planets as celestial bodies that are quiet and steady, but now we see these objects being dynamic like the stars in their early stages,” Damian said. “This somehow blurs the line between stars and planets and gives us a thief look at the early periods of stray planets.”
Source :Skai
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