A team of scientists from the Japanese universities of Ibaraki, Kogakuin, and Tohoku modeled the planet’s distance from its original formation. They found out that after the appearance of the ring, the planet can move away and leave it behind. Therefore, planets are rarely seen near the outer rings.
Scientists led by Kazuhiro Kanagawa used the world’s most powerful computer used by astronomers, ATERUI II from the National Astronomical Observatory of Japan. They considered many different structures and formations: planets, rings, which are already formed and are just being formed.
Scientists have also identified three phases in the removal of planets from the rings. In the first phase, when the planet moves along the inner axis, the ring remains intact. In the second phase, the ring begins to deform and a second ring appears. In the third phase, the initial ring disappears, and only the last ring remains, from which the planet can move away.
The origin of the rings is still unknown. Little is known about the size and composition of the ring material. For example, Saturn’s rings range in size from a few microns to tens of meters, and in terms of composition, it is water ice with admixtures of silicate dust and debris. The formation of young stars is one possible explanation for the origins of the rings that astronomers observe in the dust around the forming planets.