Researchers have developed a new model to explain the formation of giant planets such as Jupiter, which furnishes deeper insights into the processes of planet formation and could expand our understanding of planetary systems.
A team of LMU researchers has developed a new model to explain the formation of giant planets such as Jupiter , which furnishes deeper insights into the processes of planet formation and could expand our understanding of planetary systems.
With their model, the researchers demonstrate how millimeter-sized dust particles accumulate aerodynamically in the turbulent gas disk, and how this initial perturbation in the disk traps dust and prevents it from disappearing off in the direction of the star. This accumulation makes the growth of planets very efficient, as suddenly a lot of"building material" is available within a compact area and the right conditions for planet formation are present.
The study shows that in other planetary systems, a perturbation could set the process in motion at much larger distances and still happen very rapidly. Such systems have been observed frequently in recent years by the ALMA radio observatory, which has found gas giants in young disks at a distance beyond 200 au. However, the model also explains why our solar system apparently stopped forming additional planets after Neptune: the building material was simply used up.
An international research team has observed disks around 19 protostars with a very high resolution to search for the earliest signs of planet formation. This survey was motivated by the recent ...
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