Not to mention that Hot actually existed or that wampas and towntown were real, but in the early and violent days of our solar system, a monstrous frozen planet was thrown out – probably into a distant, distant galaxy.
Whatever our version of Hott was, it could be the elusive ninth planet that some astronomers are still searching for. If it really was Planet 9, then anyone who seeks to find it will be disappointed to learn that he left the solar system centuries ago. A new study has found that there was once a massive ice giant between Saturn and Uranus that was ejected by gravitational forces. The unusual location of the planets in the solar system prompted a team of scientists to create simulations to reconstruct it to understand its formation, and so the mysterious ice giant appeared.
“There are several things in the solar system that seem to contradict the types of systems found by studies of exoplanets such as TESS and Kepler,”
Our space yard is weird (we just think it’s normal because we live here). Unlike many planetary systems that orbit sun-like stars, there are no hot super-earths around here. These are planets larger than Earth but smaller than Neptune. They do not have to be rocky or remote to inhabit, but nothing in this size range exists in the solar system, although super-Earths are common throughout the Milky Way. The hot super-Earths orbit about half of the Sun-like stars. Their heat comes from orbit so close to their stars, so why are the planets closest to our star so small in comparison?
Clement believes that Jupiter absorbed so much gas and dust during its formation that it became large enough to have a huge amount of gravity that prevents the material from moving toward the planets closer to the Sun. They struggled to grow in his shadow.
“The inner solar system must have been hungry for mass and planet-forming material relatively soon after the birth of the sun,” he said. “One possible reason for this is that Jupiter has grown so fast that gravitational disturbances have prevented the material from making its way to the rising Venus, Earth and Mars. In this way, terrestrial planets like Earth grew out of the other crumbs from the rapid formation of Jupiter. “
Not only the most intimate planets do not fit into what is observed in other star systems. Another strange thing about the part of space we live in is that the larger planets that hide behind are unlike the giant exoplanets in most other systems. Exoplanets, similar to Jupiter and Saturn in mass and distance from their star, have orbits that are much less round and farther apart. Other star systems are thought to form with planets much closer together in resonant orbits, in which one planet will orbit its star X times for every Y when another planet orbits it. The thing is, the planets in these devices are prone to chaos if one of them is ejected from the system.
“This type of system experiences violent orbital instabilities, in which the planets are lost and ejected, and the rest move rapidly and reach the elliptical orbits and widely spaced orbital structures we observe,” Clement said.
How the solar system became an inappropriate star system is now even stranger when you go back several billion years. The giant planets are thought to have formed and orbited close to each other, similar to what they usually do in many other systems, and there may have been at least one other ice giant there while gravitational instability sent it to fly through space. Clement and his team saw this in action after conducting more than 6,000 computer simulations that basically removed the solar system and restored it. Some previous simulations have shown either the ejection of Uranus or Neptune by kicking Saturn to the very back. Others showed only slight instabilities that were not strong enough to throw the planet into the void.
The new simulations conducted by Clement’s team reveal something different. If Jupiter and Saturn had originally formed farther apart and were positioned so that Jupiter performed two orbits for each orbit of Saturn, both planets would have interacted with the gas that formed their orbits in the more elliptical pathways that follow today. This is still hypothetical, as there are so many possibilities for what could have happened. The researchers had to conduct simulation after simulation to see which where was appropriate in the best possible way.
“We first simulated how the giant planets grew and lined up in compact, resonant chains of orbits,” Clement said. “Then we did thousands of computer simulations of these circuits to explore all the different possibilities for instability. Finally, we compared important aspects of the finite structures of these systems with the actual architecture of the solar system to see which “birth configurations” of the giant planets seemed most likely. “
As long as the Sun stays alive, Clement believes that the orbits will remain fairly stable, although there is a chance that Mercury will end up in Venus and be sent into the distant future. At least it doesn’t look like there will be any armor-playing games in our solar system any time soon.