Mark Garlick / University of Sheffield
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The image shows a gas giant planet (such as Jupiter) in a distant orbit around a large blue star. The planet may have been captured or stolen by another star.
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Nationalgeographic.co.id—According to a new study, planet life size Jupiter it can be stolen or captured by large stars in dense nurseries of stars. This starry nursery is a densely populated place. Where hundreds of thousands of stars often reside in the same volume of space as our Sun. Violent interactions, in which stars exchange energy, are common. But it didn’t take long. After a few million years, the star clusters disappeared, filling the Milky Way with more stars.
The study was published in the journal Royal Astronomical Society Monthly Notices: Letters on September 7. The newspaper is titled Making BEASTies: dynamic formation of planetary systems around massive stars. In the report it says that exoplanet shows great diversity. Starting with the architecture of planetary systems around Sun-like stars that are very different from our Solar System, to planets orbiting post-main sequence stars or stellar remnants.
Researchers at the University of Sheffield have proposed a new explanation for the planets B-star Exoplanet Abundance STudy (BEAST) just discovered. It is a planet similar to Jupiter at a great distance (hundreds of times the distance between the Earth and the Sun). massive star.
So far its formation is still a mystery. This is because massive stars emit large amounts of ultraviolet radiation that prevent planets from growing to the size of Jupiter, the largest planet in our solar system.
“Our previous research has shown that in stellar nurseries, stars can steal planets from other stars. Or it captures what we call a “free-floating” planet, said Dr Emma Daffern-Powell, co-author of the study, at the University of Sheffield’s Department of Physics and Astronomy. “We know that massive stars have more influence in these nurseries than sun-like stars. We found that these massive stars could capture or steal planets – we dubbed them ‘BEASTies’.
“Basically, this is it theft of the planet. We used computer simulations to show that the theft or capture of these BEASTies occurred on average once in the first 10 million years of the star-forming region’s evolution. “
NASA / James Webb telescope
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According to a new study, it is possible that the theft of the planet took place in the star-forming region of NGC 3324 in the Carina Nebula.
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“The BEAST planets are new additions to a myriad of exoplanetary systems, characterized by an incredible variety of planetary systems around sun-like stars that are very different from ours. With planets orbiting stars that evolve or die.” said Dr. Richard Parker, a lecturer in astrophysics at the University of Sheffield’s Department of Physics and Astronomy.
The BEAST collaboration has discovered at least two super-Jupiter planets orbiting the massive star. While planets can form around massive stars, it’s hard to imagine gas giant planets like Jupiter and Saturn could form in such a hostile environment. Where radiation from stars can vaporize planets before they are fully formed.
“However, our simulations show that these planets can be captured or stolen, in orbits very similar to those observed for BEASTies. Our results lend further credence to the idea that planets on farther orbits (more than 100 times the distance from the Earth) for the sun) may not orbit its parent star. ” Parker said.
The research was led by Dr Richard Parker and Dr Emma Daffern-Powell at the University of Sheffield and is part of a larger research program aiming to establish how common planetary systems like ours are in the context of thousands of other planetary systems. in the Milky Way.
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